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 371:
In the diagram, the importance of the association to the fungus is that it obtains
Options:
A) a partner for reproduction
B) anchorage from the algea
C) oxgen and carbohydrates from the algae
D) water and mineral salts from the algae
Show Answer
The correct answer is C .
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Question 372: The behavioural adaptation in social insects could best be described as
Options:
A) symbiosis
B) saprophytism
C) parasitism
D) commensalisms
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The correct answer is A .
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Question 373:
In the diagram, the change in the length of the neck of the giraffes shown was brought about by
Options:
A) geographical isolation
B) predation
C) symbiosis
D) natural selection
Show Answer
The correct answer is D .
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Question 374: A characteristic feature of tropical rainforest is that it
Options:
A) Contains trees with narrow leaves
B) Contains large number of plant species
C) Contains fewer number of plant species
D) Has total annual rainfall of less than 50cm
Show Answer
The correct answer is B .
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Question 375:
The function of the structure labelled G is to
Options:
A) carry out initial photosynthesis for the seedlings
B) protect the young leaves from mechanical damage
C) protect the young leaves from sun light
D) protect the young leaves from insects pest
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The correct answer is A .
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Question 376: Which group of plants would be the first colonizers in an ecological succession changing rocks to soil?
Options:
A) Mosses
B) Ferns
C) Lichens
D) Grasses
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The correct answer is C .
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Question 377: The hypha of Rhizopus is said to be non septate because it
Options:
A) does not contain chlorophyll
B) has no cross walls
C) is vacuolated
D) stores oil globules
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The correct answer is B .
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Question 378: The correct sequence for the perception of smell in mammals is
Options:
A) chemicals → olfactory nerve endings → brain
B) dissolved chemicals → nasal sensory cell → brain
C) chemicals → mucus membrane → sensory cells→ brain
D) dissolved chemicals → sensory cells → olfactory nerve → brain
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The correct answer is D .
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Question 379:
Sources of air pollutants are
Options:
A) industrial chimneys, burning fossil oils and river dams
B) sulphurdioxide, acid rain and pesticides
C) sulphur dioxide, vehicle exhausts, and aerosols
D) sewage,smoke and old vehicles
Show Answer
The correct answer is C .
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Question 380: The theory which supports the view that the large muscles developed by an athlete will be passed on to the offspring was proposed by
Options:
A) lamarck
B) darwin
C) mendel
D) pasteur
Show Answer
The correct answer is A .