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 91: The anatomical evidence usually used in support of the evolutionary relationship among whales, human, birds, and dogs is the possession of
Options:
A) thick skin
B) pentadactyl limb
C) tail
D) epidermal structure
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The correct answer is B .
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Question 92: The growth of a coleoptile towards unilateral light source is due to
Options:
A) rapid rate of photosynthesis
B) unequal distribution of auxin
C) the effect of geotropism
D) the effect of photolysis
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The correct answer is B .
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Question 93: A characteristic of vertebrates that is unique to mammals is
Options:
A) the presence of pentadctyl limbs
B) parental care
C) the possession of scrotum
D) pulmonary circulation
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The correct answer is C .
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Question 94: The factors that determine the distribution of vegetation zones are
Options:
A) temperature, light, rain and humidity
B) light, humidity, air and mist
C) temperature, light, air and humidity
D) humidity, snow, frost and dew
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The correct answer is A .
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Question 95:
The alternate form of a gene is
Options:
A) Alternate type
B) Dominant character
C) Recessive character
D) Allele
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The correct answer is D .
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Question 96:
The hormone which regulates the amount of glucose in the blood is called?
Options:
A) Adrenalin
B) Auxin
C) Insulin
D) Thyroxine
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The correct answer is C .
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Question 97:
Use the list of ecological constituents below to answer the question below
1. Mango 2. Spear grass 3. Goat 4. Sheep 5. Temperature 6. Beans 7. Rock 8. Water
The physical factors are represented by
Options:
A) 1, 5, 6
B) 4, 5, 7
C) 5, 7, 8
D) 6, 7, 8
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The correct answer is C .
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Question 98:
The structure labelled 1 is the
Options:
A) plumule
B) radicle
C) cell membrane
D) seed coat
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The correct answer is D .
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Question 99:
Blood is pumped into the right ventricle by the contraction of the auricle wall through
Options:
A) 1
B) 3
C) 5
D) 6
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The correct answer is B .
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Question 100:
The female gamete is represented by
Options:
A) I
B) II
C) III
D) Iv
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The correct answer is C .