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
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
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
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
25
Muscles are attached to bones by means of
A
ligament
B
cartilage
C
capillaries
D
tendons
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
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
28
The diagrams above represent a group of insects known to be
A
colonial
B
parasitic
C
soldier
D
carnivorous
29
In their system of organisation, the diagram labelled II plays the role of a
A
worker
B
soldier
C
queen
D
drone
30
Which of the following determines a normal male offspring?
A
X
B
Y
C
XX
D
XY
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