1994 - WAEC Biology Past Questions and Answers - page 3
21
Which of the following represents the correct order in a possible food chain?
A
Crustacean -> diatom -> fish -> man
B
Fish -> crustacean -> man -> diatom
C
Man -> fish -> crustacean -> diatom
D
Diatom -> crustacean -> fish -> man
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22
Which of the following relationships illustrates competition?
A
Cattle egret moving along with cattle
B
Goats and cows grazing on a small grass lawn
C
Mosses succeeding lichens in a rocky terrain
D
Red mangrove swamp dying and replaced by white mangrove
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23
Which of the following agents is responsible for the dispersal of the seed shown above?
A
man
B
Water
C
Wind
D
Explosive mechanism
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24
The structure used by fishes to detect the presence and movement of other animals
by the vibration they produce is the
by the vibration they produce is the
A
eye
B
nostril
C
lateral line
D
scales
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25
Muscles are attached to bones by means of
A
ligament
B
cartilage
C
capillaries
D
tendons
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26
The ability of the eye to alter the focal length of the lens, with regard to the distance of the object from
the eye is known as
the eye is known as
A
binocular vision
B
nocturnal vision
C
distortion
D
accommodation
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27
What is the fate of the ovary of a flower after fertilization?
A
becomes the seed
B
withers away
C
becomes the fruit
D
develops more nuclei
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28
The diagrams above represent a group of insects known to be
A
colonial
B
parasitic
C
soldier
D
carnivorous
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29
In their system of organisation, the diagram labelled II plays the role of a
A
worker
B
soldier
C
queen
D
drone
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30
Which of the following determines a normal male offspring?
A
X
B
Y
C
XX
D
XY
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