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HSA Natural Science Mega Mock Test : 2022 [കലാശക്കൊട്ട് ]



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HSA Natural Science Mega Mock Test : 2022 [കലാശക്കൊട്ട് ]

🛑 Questions : 332

🛑 Time : NO LIMIT

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1) In plant succession when climax community is reached,the net productivity

 

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2) The testes are situated ____ the abdominal cavity within a pouch called ____.   [NCERT PG NO 43]

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3) Abiotic components refer to ______?

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4) Biomolecules are present in certain concentrations expressed as______?

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5) Select the correct option of haploid cells from the following groups :

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6) In the primary structure of the protein the left end is represented by ____?

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7) The nature of climax community ultimately depends on ?

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8) A food web __?

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9) Maize grain is a fruit known as

 

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10) Zoospores are [ NCERT PG NO 7]

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11) Chitin is a ..........

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Decomposers like fungi and bacteria are :
i. Autotrophs      ii. Heterotrophs

12) iii. Saprotrophs   iv. Chemoautotrophs Choose the correct answer : ___?

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13) Most critical event in sexual reproduction is [NCERT PG NO 14]

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14) The diaphragm is a rubber dome shaped structure and stops the sperms from entering into [NCERT PG NO 60]

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15) ആത്മകഥക്ക് ഒരു ആമുഖം ഇതു ആരുടെ ആത്മകഥയാണ്?

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16) detritus food chain starts from ?

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17) Polar nuclei are situated in the central cell - [NCERT]

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18) The placenta is attached to the developing seed near the

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19) Maize grain is a fruit known as ?

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20) The basic categories of ecosystem are ___?

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21) In a pond ecosystem, the autotrophic components are

 

 

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22) Energy storage at the consumer level is called

 

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23) The rate of biomass production is

 

 

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24) Non protein constituent which bound to enzymes catalytically more active are called ?

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25) The culturing of cells in liquid agitated medium is called ?

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26)

(a) Pioneer community is the final biotic community that develops in an area
(b) Pioneer community is soon replaced by the next seral community during on going succession

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27) The seminiferous tubules of the testis open into the vasa efferentia through [NCERT PG NO 43]

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28) In which of the following pollen grains have long ribbon like structure [NCERT PG NO 29]

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29) Which of the following contraceptive device is inserted by the doctor or trained nurse in the uterus through the vagina? [NCERT PG NO 60]

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30) No new follicles develop in the luteal phase of the menstrual cycle because  [NEET 2019]

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31) Out of the total propsed cost of various ecosystem services, cost of climate regulations and habitat for wildlife are

 

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32) Select incorrect statements w.r.t anther[NCERT PG NO 21]

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33) A natural method of contraception, periodic abstinence is [NCERT PG 59]

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34) Blood consists of ?

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35) Which of the following is not a producer ?

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36) All are bisexual/monoecious species except [NCERT PG NO 12 , FIG 1.6]

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37) Biosynthetic pathways is also called _____?

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38) Which of the following depicts the correct pathway of transport of sperms [NEET 2016]

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39) What is not correct with respect to testis in adults [NCERT]

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40) detritus food chain starts from

 

 

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41) In ecological Pyramid ,the base always represents the ....... and the apex represents.....

 

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42) Which of the following plant is used to extract the blue dye ?

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43) Erythroblastosis fortalis can happen if mother and father are respectively ?

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44) Pollen grains are well preserved as fossils because of presence of [NCERT PG NO 23]

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45) Pyramid of numbers is : _____?

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46) Nearly ______________ MTPs are performed in a year all of the world which accounts to  _________ of the total number of conceived pregnancies in a year [NCERT PG NO 62]

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47) Biotic components refer to

 

 

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48) The lengthwise running groove on another which separate theca is called

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49) The cofactor that associates with the apoenzyme only during course of Catalysis are called ______ ?

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50) What are the various aspects of reproduction covered by WHO?  [NCERT PG NO 57]

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51) Cybrids are

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52) The relation between producers and consumers in an ecosystem can be graphically represented in the form of a pyramid called ____?

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53) In 60% Of the angiosperms shed their pollens at the [NCERT PG NO 23]

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54) All are plant derived alkaloids except ?

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55) Conversion of fibrinogen is catalyzed by ?

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56) The relation between producers and consumers in an ecosystem can be graphically represented in the form of a pyramid called

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57) What is the amount of average price tag on nature's life support services determined by Robert Constanza and his colleagues__?

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58) An example of protein with quaternary structure is ____ ?

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59) An individual transitional communities in ecological succession are termed as

 

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60) What do you mean by dental formula?

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61) In ecological Pyramid ,the base always represents the ....... and the apex represents..... ?

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62) Roots developed from the parts of the plants other than radicle are called

 

 

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63) Hepato-pancreatic duct opens into the duodenum and carries ?

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64) Biologists describes the protein structure at ________?

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65) The ovaries are located [ NCERT PG NO 44]

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66) Primarily Involve in the defense mechanism of the body ?

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67) Which of the following ecosystems is more productive in terms of net primary production ?

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68)

In the five kingdom classification, Chlamydomonas and
Chlorella have been included in?

(a) protista (b) algae
(c) plantae (d) monera

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69) The two components of an ecosystem are ?

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70) The offspring produced through which of the following process are not exactly similar to their parents ?

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71) നാലാമത്തെ ക്രോമസോമിലെ ഒരു ജീ നിൻറെ തകരാറു മൂലം ഉണ്ടാകുന്ന രോഗം?

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72) Contraction of right ventricle pumps blood into ?

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73) Heart beat can be initiated by ?

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74) In humans, the sex of the baby is determined:

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75) Primary productivity depends upon____?

A] Availability of nutrients
B] Photosynthetic capacity of plants
C] Both a& b
D] None of these

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76) Enzyme , Carbonic anhydrase is present in ____ ?

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77) Elicitors are molecules that ...........?

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78) Which plant do not show clear cut vegetative, reproductive and senescent phase [NCERT PG NO 9]

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79) Which of the following sexually transmitted diseases is not completely curable ? [NEET 2019]

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80) In a pond ecosystem, the autotrophic components are ?

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81) Apex of heart is ?

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82)

Endospermic seeds are found in ?
1 -Barley
2- Castor
3- Pea
4- Both a & b

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83) Stratification is more pronounced in ____?

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84) find the correct descending order of percentage proportion of leukocyte in the human blood?

 

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85) പാലിയം സത്യാഗ്രഹം ആരംഭിച്ച വർഷം?

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86) Enzymes exhibit which structure of proteins for biological activities... ?

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87) Platelets are ?

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88) Pollination by water is limited to about [NCERT PG NO 29]

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89) Plant biotechnology involves ?

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90) Which of the following statement is incorrect ?

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91) A detritivore is___?

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92) Open circulatory system is present in ?

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93) Vertical distribution of different species occupying different levels in a biotic community is known as

 

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94) The rate of biomass production is ___?

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95) Atretic follicles are found in the

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96) All are plant derived elicitors except?

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97) കോക്ലിയക്ക് എത്ര അറകൾ ഉണ്ട്?

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98) Humans are ____ and ____ organisms. [ NCERT PG NO 42]

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99) The blood returning to the heart from lungs via pulmonary vein has more ?

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100) Inability to conceive or produce children even after_______ of unprotected sexual cohabitation is called infertility .[NCERT SUMMARY]

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101)

Five kingdom system of classification suggested by
R.H. Whittaker is not based on ?

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102) Edible part of apple and pear is___?

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103) An inverted pyramid of biomass can be found in which ecosystem

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104) Immobilized cell bioreactors are based on........

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105) According to the type of attachment, teeth can be ?

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106) Confirmatory test for STDs is [NCERT]

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107) A secondary metabolite that is alkaloid in nature is _______ ?

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108) Who play an important role in guiding the pollen tubes to enter the embryo sac [NCERT PG NO 27]

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109) മദ്യം മസ്തിഷ്കത്തിലെ ഏത് നാഡീയ പ്രേക്ഷകത്തിന്റെ ഉൽപാദനത്തെയാണ് ത്വരിതപ്പെടുത്തുന്നത്

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110)

In which kingdom would you classify the archaea
and nitrogen-fixing organisms, if the five kingdom
system of classification is used ?

(a) Plantae (b) Fungi
(c) Protista (d) Monera

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111) Chordae tendineae are found in ?

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112) When the heart stop beating condition is called ?

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113) Vertical distribution of different species occupying different levels in a biotic community is known as ?

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114) Every 500 ml of oxygenated blood can deliver around _________ of O2 to the tissue ?

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115) Energy for the detritus food chain comes from

 

 

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116) Which of the following is best suited method for production of virus free plants?

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117) The volume of blood that enters into the aorta with each ventricular systole is called ?

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118) In an embryo sac of  anatropous ovule , cells present at chalazal end are called [NCERT PG NO 27]

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119) Which of the following is non-medicated IUDs [NCERT PG NO 60]

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120) Phase of menstrual cycle in human that lasts for 7-8 days is

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121) Region outside the seminiferous tubule is called

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122) Pyramid of numbers in a pond ecosystem is : ___?

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123) A detritivore is

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124) Endosperm a product of double fertilisation in angiosperms is absent the seeds of

 

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125) Climate community is

 

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126) Many pulses of daily use belong to one of the families below___?

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127) Most abundant protein in plants is ..........

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128) In mammals, veins differs from arteries in having ?

 

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129) Nearly 70% CO2 absorbed by blood will be transported to the lungs ?

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130) An individual transitional communities in ecological succession are termed as ?

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131) The percentage of water and protein in a straw coloured viscous fluid is

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132) What is true about ecosystem

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133) രണ്ട് ശ്വാസകോശങ്ങളുടെയും വായു അറകളുടെ ആകെ പ്രതല വിസ്തീർണ്ണം ഏകദേശം എത്ര ചതുരശ്ര മീറ്റർ ആണ്??

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134) During intake of food, what prevents the entry of food into the glottis ?

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135) How many sperms are formed from a secondary spermatocyte?

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136) The T-wave in an ECG represents ?

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137) Seminiferous tubules contain __________ for providing nutrition to sperm cells. [NCERT PG NO 43]

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138) Which of the following is the most stable ecosystem ?

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139) Each Ovary is connected to the pelvic wall and the uterus by: [NCERT PG NO 44 ]

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140) Protein with catalytic power is named ______?

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141) Release of sperm from seminiferous tubule is known as [NCERT PG NO 47]

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142) An important criterion for modern day classification is ?

(a) resemblances in morphology
(b) anatomical and physiological traits
(c) breeding habits
(d) presence or absence of notochord

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143) Blood group which do not contain any antigen on its surface ?

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144)

In five kingdom system, the main basis of
classification is ?

(a) structure of nucleus (b) mode of nutrition
(c) structure of cell wall (d) asexual reproduction.

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145) Proximal end of the filament is attached to the [NCERT PG NO 21]

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146) എവിടെയാണ് പി കൃഷ്ണപിള്ള ജനിച്ചത്?

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147) When does plant take decisions to flower? [NCERT PG NO 20]

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148) ________________ Makes the uterus unsuitable for implantation and the cervix hostile to ____________

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149) The process which refers to development of embryo is called ?

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150) What is the structure of the ecosystem is comprised of ?

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151) Out of the total propsed cost of various ecosystem services, cost of climate regulations and habitat for wildlife are ?

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152) Which of the following is an example of man made ecosystem ?

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153) What is the amount of average price tag on nature's life support services determined by Robert Constanza and his colleagues

 

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154) An ecosystem resists change because it is in a state of : ___?

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155) In which of the following, both autogamy and geitonogamy are prevented

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156) Opening of the right ventricle into Pulmonary artery and that of left ventricle into the aorta is provided with ?

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157) Strobilanthus kunthiana is found in [NCERT PG NO 9]

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158) Protein is a ..............

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159) The bond between phosphate and hydroxyl group of sugar is called______?

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160) Type of protein found in plasma is?

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161) In adult, each testis bears ____ compartments called testicular lobules. [NCERT PG NO 43]

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162) Embryo with more than 8 blastomeres formed due to in vitro fertilisation is transferred into [NCERT PG NO 64]

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163) Wider part of the oviduct is [NCERT PG NO 46]

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164) Trophic levels are formed by :___?

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165) Which one of the following statements is correct with respect to immunity ?

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166) In an ecosystem, organism occupies a specific place in a food chain called ?

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167)

Which of the following are found in extreme saline
conditions?

(a) Eubacteria (b) Cyanobacteria
(c) Mycobacteria (d) Archaebacteria

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168) In monerans & protistan  , the parents cell divides by  [NCERT PAGE NO 5]

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169) Which one of the following groups includes sexually transmitted infections caused by virus only ?

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170) In the heart of mammals, the bicuspid valve (mitral valve) is situated between ?

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171) The largest part of the fallopian tube is [NCERT PG NO 44]

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172) Patterns and designs of exine of pollen grains are Characteristic feature of  [NCERT PG NO 23]

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173) Tricuspid and bicuspid or mitral valve is present in between respectively ?

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174) To achieve three celled stage in angiosperm which cell of pollen grain divide to form two male gametes [NCERT PG NO 23]

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175) Enzymes can have ?

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  • 176) മലബാറിൽ പാശ്ചാത്യ വിദ്യാഭ്യാസത്തിന് അടിസ്ഥാനമിട്ടത്?

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177) The outermost and innermost wall layers of microsporangium in an anther are respectively [NCERT PG NO 21]

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178) lymph is an important carrier for the transport of ?

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179) Oxygenated blood is carried by

(OR)

Blood vessels carrying blood from lungs to heart

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180) Which of the following structure is absolute necessary for many biological activities of the protein ?

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181) Enzyme Carbonic anhydrase is present in _____ ?

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182) What will be the ploidy of nucellus , MMC, Functional megaspore & female gametophyte respectively [NCERT PG NO 26]

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183) ശരിയായത് ഏത് ?

  1. മണ്ണും രാസവളങ്ങളും കീടനാശിനികളും പൂർണമായും ഒഴിവാക്കി മത്സ്യങ്ങളോടൊപ്പം പച്ചക്കറികളും പഴങ്ങളുംമെല്ലാം ജൈവരീതിയിൽ ഉൽപാദിപ്പിക്കപെടുന്ന സങ്കേതമാണ് അക്വാപോണിക്സ്.
  2. മത്സ്യകൃഷിയും മണ്ണില്ലാ കൃഷിരീതിയായ ഹൈഡ്രോപോണിക്സും സംയോജിക്കപ്പെട്ട കൃഷിരീതിയാണിത്.
  3. അക്വാ പോണിക്സ് രീതിയിൽ വളരുന്ന ചെടികൾക്ക് നനയോ വളപ്രയോഗമോ ആവശ്യമില്ല

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184) Which of the following is an example of man made ecosystem

 

 

 

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185) During parturition, the fetal ejection reflex triggers the release of:

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186) Which of the following is not a producer

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187) Roots developed from the parts of the plants other than radicle are called___?

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188) The term ecosystem was coined by __?

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  • 189) ഏതു മണ്ഡലത്തിൽ നിന്നാണ് ജോസഫ് മുണ്ടശ്ശേരി 1957ൽ കേരള നിയമസഭയിലേക്ക് തിരഞ്ഞെടുക്കപ്പെട്ടത്?
  •  പരവൂർ മണലൂർ കോട്ടയം തൊടുപുഴ

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190) Which is the hormonal method of birth control

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191) Venation is term used to describe the pattern of arrangement of ?

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192) Adult hemoglobin consists of four subunit of these are identical to each other that are the 4 units ______?

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193) It is an essential event in sexual reproduction .[NCERT PG NO 17, SUMMARY]

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194) In an ecosystem, organism occupies a specific place in a food chain called

 

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195) Lecithin is a ..............

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196) Which of following structure of Starch can Hold I2 molecules and gives blue colour ?

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197) Sepals also remain attached in plant after fertilisation only in [NCERT PG NO 16]

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198) Integuments encircle the nucellus except at the [NCERT PG NO 25]

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199) The term ecosystem was coined by

 

 

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200) What is true about ecosystem ___?

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201) In  majority of angiosperm [NEET 2016]

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202) Which cell secrete testicular hormones [NCERT PG NO 43]

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203) How many maximum molecules of O2 will be carry by 4 haemoglobin molecule ?

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204)

Match the organisms in column-I with habitats in
column-II.

Column-I         Column-II
A. Halophiles  (i) Hot springs
B. Thermoacidophiles    (ii) Aquatic environment
C. Methanogens  (iii) Guts of ruminants
D. Cyanobacteria  (iv) Salty area
Select the correct answer from the options given
below.

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205) In a polysaccharide Chain Right end is called the ?

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206) Cellulose is a polymer of ?

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207) Seminal plasma is rich in which sugar? [NCERT PG NO 44]

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208) Heart is derived from ?

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209) Endospermic seeds are found in

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210) Batch cultures are type of suspension culture where ?

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211) Total number of incisors, canines, premolars and molars in an adult man is ?

 

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212) Example of wind pollination is [NCERT PG NO 29]

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213) The primary female sex organs are located

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214) Plasma without clotting factor is called ?

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215) Which Chambers of the heart that has thickest muscular wall ?

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216) The process of breaking down complex organic matter into inorganic substances like CO2 water and nutrient is called ?

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217) Many pulses of daily use belong to one of the families below

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218) Amniocentesis is used to test for the presence of certain genetic disorders except [NCERT PG NO 58]

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219) Each cell of sporogenous tissue is a [NCERT PG NO 22]

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220) Haemoglobin is a ___________ coloured ________ containing pigment ?

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221) Nature of waves in the heart is (CPMT) ?

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222)

BGA (blue green algae) are included in which of the
following groups?

(a) Bryophytes (b) Prokaryotes
(c) Protista (d) Fungi

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223) which of  the following birth control measures can be considered as the most effective and reliable ?

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224) In ICSI , sperm is directly injected the__________ [NCERT PG NO 64]

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225) Syngenesious condition of stamen is found in family?

 

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226) Oxygen Hb dissociation curve is ?

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227) Ovarian stroma is enclosed by a thin ____. [NCERT PG NO 44]

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228) External fertilisation occurs in

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229) അബ്കാരി നിയമപ്രകാരം താഴെപ്പറയുന്നവയിൽ ശരിയായ ജോഡി ഏതെന്ന് കണ്ടെത്തുക

 

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230) Which of the following is inorganic co factor ?

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231) The other term for heart attack is ?

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232) Which one of the following is not a functional unit of an ecosystem ?

 

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233) Most commonly used body fluid ?

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234) The mineral distribution in tissue fluid is similar to that in?

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235) econdary productivity is rate of formation of new organic matter by ___?

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236) The placenta is attached to the developing seed near the?

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237) The primary function of large intestine in man is ?

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238) Syngenesious condition of stamen is found in family ?

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239) Energy storage at the consumer level is called __?

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240) ബാസൽ മിഷൻകാർ ഓട് ഫാക്ടറി സ്ഥാപിച്ചത് എവിടെ?

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241) Difference between ZIFT and IUT lies in the

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242) The number of Chambers in the heart of fishes amphibian and birds ?

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243) In plant succession when climax community is reached,the net productivity ?

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244) Which of the following animal is bisexual ?

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245) All three wall layers perform the function of protection & help in dehiscence of anther to release pollen except [NCERT PG NO 21]

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246) How many % of Blood is plasma?

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247) The entire sequence of communities that successively changes in a given area are called ?

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248) Inulin is a Polymer of ?

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249)  

Flowers require synchrony in pollen release and stigma receptivity in [NCERT PG NO 27]

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250) Edible part of apple and pear is

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251) Systemic heart refers to ?

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252) Maximum nutritional diversity is found in the group ?

(a) fungi (b) animalia
(c) monera (d) plantae

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253) Which of the following ecosystems is more productive in terms of net primary production

 

 

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254) Which light range is least effective in photosynthesis ?

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  • 255) കേരളത്തിൽ ജന്മി സമ്പ്രദായം നിർത്തലാക്കൽ പ്രാബല്യത്തിൽ വന്ന വർ?

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256) In India, marriageable age for boys is ____ and girls is ____ respectively. [NCERT]

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257) Which of the following is correct for standard ECG ?

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258) Which neural signal decreases the heart rate and thereby the cardiac output ?

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259) The mucosal layer in the stomach forms irregular folds known as ?

260 / 332

260) Which one of the following is not a functional unit of an ecosystem

 

261 / 332

261) Apporoxima 97% O2 absorbed by blood is transported to the body tissue ?

262 / 332

262) Primary productivity depends upon

 

263 / 332

263) in a living body coagulation of blood in the blood vessel is prevented by ?

264 / 332

264) (a) Pioneer community is the final biotic community that develops in an area

(b) Pioneer community is soon replaced by the next seral community during on going succession

 

 

265 / 332

265) Who occupies the centre of each microsporangia when the anther is young [NCERT PG NO 21]

266 / 332

266)

In the five kingdom system of classification, which
single kingdom out of the following can include
blue-green algae, nitrogen fixing bacteria and
methanogenic archaebacteria?

(a) Plantae (b) Protista
(c) Monera (d) Fungi

267 / 332

267) Endosperm a product of double fertilisation in angiosperms is absent the seeds of____?

268 / 332

268) Estrous cycle is found in

269 / 332

269) Within the heart AV node is found at ?

270 / 332

270) The ovarian stroma is divided into zones [NCERT PG NO 44]

271 / 332

271) Select incorrect statements regarding water hyacinth. [ NCERT PG NO 8]

272 / 332

272) Encysted amoeba divides by [NCERT PG NO 6]

273 / 332

273) Which constitute the female accessory ducts [NCERT PG NO 45]

274 / 332

274) മോഹ്‌സ് സ്കെയിൽ പ്രകാരം വിരലിലെ നഖത്തിൻ്റെ കടുപ്പം എത്ര ?

 

275 / 332

275) It is the vital link that ensure continuity of species. [NCERT PG NO 15]

276 / 332

276) Which one of the following is not the function of placenta?

277 / 332

277) Primary production is ______?

278 / 332

278) Which of the following event is post fertilisation event ?

279 / 332

279) Select what is not true of intestinal villi among the following ?

280 / 332

280) How many microsporangia are located in the corners of a typical bilobed anther of angiosperm ? [NCERT], [KCET 2021]

281 / 332

281) In the tropical rain forest, most of the energy in the ecosystem flows through : ___?

282 / 332

282) In a biotic community, the primary consumers in the ecosystem are __?

283 / 332

283) In a biotic community, the primary consumers in the ecosystem are

 

284 / 332

  • 284) അടിമകൾ എങ്ങനെ ഉടമകളായി എന്ന മലയാള കൃതി രചിച്ചത്?

 

285 / 332

  • 285) ഓരോ പള്ളിക്കും ഒപ്പം ഒരു പള്ളിക്കൂടം എന്ന ആശയം മുന്നോട്ട് വെച്ചത്?

286 / 332

286) Which is a major factor which could affect the binding of CO2 with Hb ?

287 / 332

287) Correct statement about Leydig cells [NCERT PG NO 43]

288 / 332

288) Liver is the largest gland and is associated with various functions, choose one which is not correct. ?

289 / 332

289) The external opening of urethra is called [NCERT PG NO 43]

290 / 332

290) The primary oocyte completes the first meiotic division [NCERT PG NO 49]

291 / 332

291) In ecological succession, the communities in near equilibrium with the environment, are called ?

292 / 332

292) Climate community is __?

293 / 332

293) In angiosperm , Over _______ pollen grains shed at 2 celled stage & _______ pollen grains shed at 3 celled stage . [NCERT PG NO 23,]

294 / 332

294) The nature of climax community ultimately depends on

 

 

295 / 332

295) In the food chain, which is most abundant in tropical rain forest and is a major conduit for energy flow ?

296 / 332

296) Leucocytes are colorless due to ?

297 / 332

The modification of exogenous compounds by plant cells is called
a) Biotransformation

297) b) bioconversion

c) both a and b

d) biophytomodification

298 / 332

298) Building block of nucleic acid is ...........

299 / 332

299) Artificial seeds are.........

300 / 332

300) Pollen grains are mature when [NCERT PG NO 23]

301 / 332

301) Clot formed by a network of the thread head injury site is composed of ?

302 / 332

302) In an ecosystem, the rate of production of organic matter during photosynthesis is termed as __?

303 / 332

303) Which of the following plant is used to extract the blue dye

 

 

304 / 332

304) ജന്തു വൈവിധ്യം ഏറ്റവും കൂടുതൽ കാണപ്പെടുന്ന വനങ്ങളുടെ പ്രത്യേകത ഏത് ?

305 / 332

305) Binding of CO2 with Hb more in tissue when ?

306 / 332

306) Which is not a Cu releasing IUDs [NCERT PG NO 60]

307 / 332

307) Four chambered heart is not present in ?

308 / 332

308) Venation is term used to describe the pattern of arrangement of

 

 

 

309 / 332

309) The most common solidifying agent used in micropropagation is ............?

310 / 332

310) Blood group do not contain any antibody in its plasma ?

311 / 332

311) if husband is Rh+ when wife is Rh- negative then................?

1) No problem with first child
2) Second child would have anaemia ( erythroblastosis foetalis )
3) Second child would be normal
4) Both 1 and 2

312 / 332

312) The population of India at the time of independence was about

313 / 332

313) Human heart is ?

314 / 332

314) When more than 1 pistil fused together , it is said to be [NCERT PG NO 24]

315 / 332

315) The two components of an ecosystem are

 

 

 

 

316 / 332

316) Energy for the detritus food chain comes from ?

317 / 332

317) Inside the mature seed, it is the progenitor of the next generation .[NCERT  PG NO 17]

318 / 332

318) Employment of hereditary principles in the improvement of human race is ?

319 / 332

319) Which is largest among the given lymphocytes?

320 / 332

320) During systole of heart ?

321 / 332

321) What is total diastolic time of ventricle in cardiac cycle ?

322 / 332

322) The entire sequence of communities that successively changes in a given area are called

 

323 / 332

323) Which one of the following animals may occupy more than one trophic level in the same ecosystem at the same time ?

324 / 332

324) A food web

 

 

325 / 332

325) An inverted pyramid of biomass can be found in which ecosystem ?

326 / 332

326) Isogametes of [NCERT PG NO 10, FIG 1.5]

327 / 332

327) Anther is generally

328 / 332

328) In in birds and mammals the oxygenated and deoxygenated blood is received by?

329 / 332

329) Centre of each  microsporangium is occupied by [NCERT PG NO 21]

330 / 332

330) Biotic components refer to___?

 

331 / 332

331) Exchange of gases nutrient sector between the fluid and the cells take place through ?

332 / 332

332) The distal end of the filament is attached to [NCERT BASED]

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