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 211: In mammals, the exchange of nutrients and metabolic products occurs in the
Options:
A) lungs
B) oesophagus
C) trachea
D) lymph
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The correct answer is D .
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Question 212:
What is the part marked X in the figure above called?
Options:
A) Pulmonary artery
B) Pulmonary vein
C) Vena cava
D) Main aorta
E) Hepatic artery
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The correct answer is A .
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Question 213: When the adults have reach a certain degree of weakness, the process of binary fission is replaced by conjugation in
Options:
A) Paramecium
B) Euglena
C) Amoeba
D) Plasmodium
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The correct answer is A .
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Question 214: The vascular tissues in higher plants are responsible for
Options:
A) the movement of food and water
B) suction pressure
C) transpiration pull
D) the transport of gases and water
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The correct answer is A .
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Question 215: The only vein that carriers pure oxygenated blood is the
Options:
A) renal vein
B) pulmonary vein
C) hepatic vein
D) sciatic vein
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The correct answer is B .
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Question 216: The interaction of a community of organisms with its abiotic environment constitutes
Options:
A) niche
B) a food chain
C) an ecosystem
D) a mirohabitat
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The correct answer is C .
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Question 217: A caterpillar and an aphid living in different parts of the same plant can be said to
Options:
A) occupy the same ecological niche
B) be in different habitat
C) occupy different ecological niche
D) be in the same microhabitats
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The correct answer is A .
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Question 218: The ability of chemelon to change its colour rapidly is an adaptation for
Options:
A) obtaining food
B) attraction mate
C) communication
D) escaping detection
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The correct answer is D .
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Question 219: An indigenous method of renewing and maintaining soil fertility is by
Options:
A) clearing farms by burning
B) planting one crop type
C) adding inorganic fertilizers yearly
D) crop rotation and shifting cultivation
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The correct answer is D .
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Question 220: Which of the following is an example of discontinuous variation observed in man?
Options:
A) Skin colours
B) Tongue rolling
C) Body weight
D) Height
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The correct answer is B .