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2012 - WAEC Biology Past Questions and Answers - page 2

11

Which of the individual is likely to have HIV?

A
I
B
II
C
III
D
IV
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12

The diagrams above are part of the human lungs. Which of the parts is diagram Z taken from

A
II
B
III
C
IV
D
V
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13

The diagram above is an illustration of the human excretory system. Which of the labelled parts contains the
highest amount of nitrogenous waste?

A
I
B
II
C
IV
D
VI
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14

Increasing adrenalin content of the blood would be expected to decrease the flow of blood to the

A
liver
B
heart
C
lungs
D
brain
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15

The following are all examples of a simple reflex action, except

A
swallowing
B
sneezing
C
walking
D
blinking
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16

Impulses are conducted towards the nerve cell through the

A
myelin sheath
B
dendrons
C
axons
D
synaptic nodes
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17

A student dissecting am animal specimen discovered that it had two auricle and on ventricle. The animal is likely to a/an

A
fish
B
reptile
C
amphibian
D
bird
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18

The function of the convex lens in the correction of eye defects is to

A
diverge light rays from far objects to focus image on the retina
B
converge light rays to focus image behind the retina
C
converge light rays to focus time image before the retina
D
converge light rays from far objects to focus their image on the retina
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19

Which of the following parts of the eye contains light sensitive cells?

A
Choroid
B
iris
C
Retina
D
Lens
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20

The hair on the human skin will stand erect when the person is

A
in an air-conditioned room
B
strolling in the sun
C
taking a hot drink
D
doing strenuous exercise
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