2016 - WAEC Biology Past Questions and Answers - page 3
21
The direction wind is determined by
A
an anemometer
B
a Secchi disc
C
a wind vane
D
a barometer
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22
Food webs are complex because
A
the number of producers are large
B
many animals feed directly on producers
C
they include primary, secondary and tertiary consumers
D
some animals form part of several food chains
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23
Special modification which enable an organism to survive in its habitat is known as.
A
adaptation
B
tolerance
C
mimicry
D
colouration
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24
Which of the following relationships does not involve two organisms?
A
Commensalism
B
Saprophitism
C
Symbiosis
D
Parasitism
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25
Overcrowding in a population does not result in
A
death
B
commensalism
C
competition
D
migration
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26
A pandemic is an outbreak of disease that
A
is confined to a town
B
is wide spread
C
will not spread
D
has limited spread
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27
The rational and prudent use of natural resources is known as
A
presrevation
B
conservation
C
utilization
D
management
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28
Which of the following natural resources cannot be conserved?
A
soil
B
water
C
wildlife
D
air
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29
Which of the following actions supports conservation? To
A
protect endangered species
B
preserve trees for timber
C
permit hunting activities
D
provide income for the government
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30
A noticeable physical appearance of individuals of the same species is called
A
physical variation
B
morphological variation
C
physiological variation
D
discontinuous variation
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