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 1:
An adaptation for defense in animals is?
Options:
A) croaking of a male toad
B) basking in lizard
C) spines in porcupine fish
D) huddling together of penguins
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The correct answer is C .
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Question 2: For growth to occur in organisms, the rate of
Options:
A) food storage must be low
B) catabolism must exceed that of anabolism
C) anabolism must exceed that of catabolism
D) food storage must be high
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The correct answer is C .
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Question 3: The light sensitive cells in the human eye is called the ................
Options:
A) Choroid
B) Sclerotic layer
C) retina
D) cones
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The correct answer is D .
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Question 4:
Which of the following statements best describes courtship behaviors in animals?
Options:
A) Courtship behaviors are solely performed by males to establish dominance within a social group
B) Courtship behaviors involve displays and rituals performed by both males and females to attract a mate
C) Courtship behaviors are primarily performed by females to attract males for mating
D) Courtship behaviors are aggressive interactions between males competing for a female mate
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The correct answer is B .
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Question 5:
The damage to ozone layer is caused by
Options:
A) Oxygen
B) Nitrogen oxide
C) Chlorofluorocarbons
D) sulphur dioxide
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The correct answer is C .
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Question 6:
In the enzyme (amlyase) reactions of starch → sugar
Starch is referred to as the
Options:
A) substrate
B) product
C) enzyme
D) enzyme-substrate complex
E) reaction mixture
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The correct answer is A .
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Question 7: Which of the following statements gives the BEST description of bark?
Options:
A) Tissue outside the vascular cambium
B) Cork-like tissue found only in stems
C) Brown tissue never found in primary growth
D) Cork-like tissues of old trees
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The correct answer is B .
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Question 8: Wind pollinated flowers usually have
Options:
A) rough pollen grains
B) sticky stigmas
C) small and short stigmas
D) long styles
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The correct answer is D .
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Question 9:
Mineral salts can be absorbed into roots by
Options:
A) Osmosis only
B) Osmosis and diffusion
C) Diffusion and active transport
D) Imbition only
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The correct answer is C .
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Question 10: An ecological succcession often leads to
Options:
A) an increase in species diversity
B) decrease in species diversity
C) an unstable community
D) the dispersal of species
Show Answer
The correct answer is A .