1997 - WAEC Biology Past Questions and Answers - page 2
11
Which of the labelled parts is made up of dead cells?
A
III and IV
B
I, II and IV
C
IV and V
D
II and III
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12
The part labelled I in the diagram is called
A
stoma
B
epidermis
C
Ienticel
D
cortex
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13
The malpighian tubule plays a major role in
A
inspiration
B
digestion
C
secretion
D
reproduction
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14
Filtered blood from the kidney is carried back to the circulatory system
through the
A
hepatic portal vein
B
renal artery
C
renal vein
D
pulmonary vein
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15
The early removal of the pituary gland in animals may cause
A
ceasation of growth
B
gigantism
C
poor mental development
D
goitre
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16
A high concentration of auxin in the root will
A
inhibit growth
B
stimulate growth
C
not affect growth
D
cause the root to roth
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17
The part labelled II in the diagram is the
A
central canal
B
grey matter
C
spinal cord
D
dorsal root
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18
Which of the labelled parts is filled with cerebrospinal fluid?
A
V And I
B
V only
C
III only
D
II and I
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19
Which of the following is an example of a reflex action?
A
Sneezing
B
Biting
C
Dancing
D
Singing
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20
During mating, the male toad holds the female with its
A
sticky tongue
B
jelly
C
webbed hind limbs
D
nuptial pad
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