Biology is the study of life and living things. It can be divided into different areas that look at the structure, function, anatomy, and behavior of organisms.
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Question 11: The veins of the leaf are formed by the
Options:
A) vascular bundles
B) cambium cells
C) palisade tissue
D) spongy mesophyll
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The correct answer is A .
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Question 12:
In the diagram, the likely pollinating agent of the flower is
Options:
A) wind
B) water
C) insect
D) man
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The correct answer is C .
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Question 13: Fehling's solution will readily change colour from blue to reddish colour when it is
Options:
A) mixed with sugar solution in the cold
B) warmed or heated by itself
C) mixed with reducing sugar in the cold
D) warmed or heated with complex solution
E) warmed with a solution of reducing sugar
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The correct answer is E .
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Question 14: In a positive phototropic response of a coleoptile, the region of greatest curvature is brought about by the
Options:
A) movement of auxins away from the region of curvature
B) even distribution of auxins in all parts of the coleoptile
C) inhibition of growth by auxins in the region f smaller curvature
D) concentration of auxins in the region of curvature
E) absence of auxins in the coleoptile
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The correct answer is D .
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Question 15: Which of the following theories was NOT considered by Darwin in his evolutionary theory?
Options:
A) variation
B) survival of the fitest
C) use and disuse
D) competition
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The correct answer is C .
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Question 16: Which of the following animals has homodont dentition?
Options:
A) Rat
B) Man
C) Lizard
D) Pigeon
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The correct answer is C .
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Question 17:
I. Stomata --> Spirogyra
II. Alveoli --> Earthworm
III. Malpighian tubule -> Mammal
IV. Contractile vacuole -> Protozoa
Which of the above structures is correctly matched with the organisms in which it is found?
Options:
A) II
B) I
C) IV
D) III
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The correct answer is C .
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Question 18:
Use the diagram above to answer this question. The structure labelled l is
Options:
A) photosensitive
B) radiosensitive
C) chemoreceptive
D) tactile
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The correct answer is D .
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Question 19: Nastic movement is
Options:
A) response to light stimulus
B) non-directional
C) directional
D) response to internal stimulus
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The correct answer is B .
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Question 20: The process of walking is under the control of the part of the brain called
Options:
A) optic lobe
B) olfactory lobe
C) cerebellum
D) medulla oblongata
Show Answer
The correct answer is C .