Biology 2011 | Study Mode

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Question 41
A
3
B
4
C
5
D
2
Explanation

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Correct option: A
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Question 42
A
contrasting antigens and antibodies
B
two different antigens
C
two different antibodies
D
similar antigens and antibodies
Explanation

For example, take the blood group A, it has antigen A and antibody B. When the anti-A antibody is used on this blood group, it causes a clumping. The anti-A antibody contains Antigen A. Hence, the clumping which is called AGGLUTINATION.


Correct option: D
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Question 43
A
traits are acquired through disuse of body parts
B
acquried traits are heritable
C
acquired traits are seldom formed
D
traits are acquired through the use of body parts
Explanation

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Correct option: B
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Question 44
A
warning colouration
B
disruptive colouration
C
crypsis
D
mimicry
Explanation

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Correct option: D
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Question 45
A
convergent evolution
B
continuous variation
C
coevolution
D
divergent evolution
Explanation

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Correct option: A
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Question 46
A
ll and IV
B
l and IV
C
ll and lll
D
l and lll
Explanation

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Correct option: B
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Question 47
A
carbon (IV) oxide
B
nitrogen
C
oxygen
D
carbon (II) oxide
Explanation

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Correct option: A
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Question 48
A
diffusion
B
photosynthesis
C
fermentation
D
plasmolysis
Explanation

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Correct option: C
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Question 49
A
it transmit water borne disease to humans
B
it is distructive to farm crops
C
its faeces pollutes drinkng water
D
it helps in the control of mosquito larvae
Explanation

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Correct option: B
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Question 50
A
sleeping sickness
B
river blindness
C
cholera
D
elephantiasis
Explanation

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Correct option: D

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