2016 - WAEC Biology Past Questions and Answers - page 2
11
The best time to pluck the leaf for the experiment is
A
after being exposed to sunlight
B
three hours after sunset
C
before sunrise
D
six hours after sunset
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12
The best time to pluck the leaf for the experiment is
A
after being exposed to sunlight
B
three hours after sunset
C
before sunrise
D
six hours after sunset
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13
In which of the plant tissues are guard cells located?
A
Epidemis
B
MesophyII
C
Vascular bundles
D
Meristems
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14
The association between two organisms in which one of the organisms gains and the other loses is referred to as
A
saprophytism
B
commensalism
C
mutualism
D
parasitism
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15
The function of the villi in the alimentary canal is to
A
secrete gastric juice
B
Curdle milk
C
emulsify fat
D
increase the surface area for absorption
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16
The function of the villi in the alimentary canal is to
A
secrete gastric juice
B
Curdle milk
C
emulsify fat
D
increase the surface area for absorption
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17
The function of the villi in the alimentary canal is to
A
secrete gastric juice
B
Curdle milk
C
emulsify fat
D
increase the surface area for absorption
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18
The function of the villi in the alimentary canal is to
A
secrete gastric juice
B
Curdle milk
C
emulsify fat
D
increase the surface area for absorption
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19
Which of the following structures is not an organ of the disgestive system?
A
Oesophagus
B
Pancreas
C
Stomach
D
Kidney
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20
In ecology, a community refers to
A
a number of individuals of a given species
B
groups of different organisms living in a habitat
C
existing species in an abandoned farmland
D
the dominant species in a habitat
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