1991 - WAEC Biology Past Questions and Answers - page 2

11
The upper part of the trachea in mammals is called
A
palate
B
epiglottis
C
larynx
D
glottis
correct option: c
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12
Which of the following parts of the mammalian skin is directly is directly involved in excretion?
A
Sebaceous gland
B
Sweet gland
C
Hormy layer
D
Hair follicle
correct option: b
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13
Kidney stone is a disease of the Kidney that result in the
A
blockage of the tubules by solid particles
B
passing out useful materials of the body fluid within the urine
C
presence of large quantity of water in urine
D
passing out hormones in the urine
correct option: a
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14
The following are the activities of the liver except
A
production of heat
B
manufacture of bile
C
detoxication of alcohol and drugs
D
maintenance of osmotic balance
correct option: d
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15
Infective hepatitis is a disease of the
A
heart
B
kidney
C
liver
D
stomach
correct option: c
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16
The pituitary is regarded as the master gland because
A
it is locatd in the brain
B
its secretion are the most numerous
C
its secretion control other endocrine glands
D
it is the biggest endocrine gland
correct option: c
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17
Growing radicles of seddlings are
A
negatively phototropic
B
positively phototropic
C
negatively geotropic
D
negatively hydrotropic
correct option: a
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18
Over-secretion of thyroxin is likely to lead to
A
thinness in body
B
sluggishness
C
cretinism in infant
D
reduced metabolism
correct option: a
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19
If a germinating seed is attached horizontally on a revolving klinostat, what will be the effect of the seedling after three days? The
A
plumule will curve vertically upward while the radicle will curve towards the ground
B
plumule and radicle will not show any curvature
C
radicle will curve towards the ground while the plumule will not show any curvature
D
plumule will curve vertically upward while the radicle will not show any curvature
correct option: b
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20
The human skin is regarded as a sense organ because it
A
separates the body from the outside world
B
protects the body from cold and heat
C
regulates the water content of the body
D
has an outer layer of dead cells
correct option: e
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