1997 - WAEC Biology Past Questions & Answers - page 3

21
The diagram above represents a
A
germinating seed
B
radicle
C
shoot showing negative phototropism
D
zygote
CORRECT OPTION: e
22
The part labelled I in the diagram is the
A
cytoplasm
B
pollen nucleus
C
pollen tube
D
endosperm
CORRECT OPTION: d
23
Which of the following fruits is a schizocarp?
A
Groundnut
B
Desmodium
C
crotalaria
D
Cashew
CORRECT OPTION: b
24
Which of the following is not a characteristic of wind dispersed fruits and seeds?
A
Light weight
B
Wing
C
Floss
D
Stickyjuice
CORRECT OPTION: d
25
Which of the following structures transports water from the roots to the leaves?
A
Phloem
B
Cambium
C
Pericycle
D
Xylem
CORRECT OPTION: d
26
The eye defect represented in the diagram is
A
myopia
B
hypermetropia
C
presbyopia
D
astigmatism
CORRECT OPTION: a
27
The above defect is corrected by using a
A
concave lens
B
converging lens
C
cylindrical lens
D
bi-focal lens
CORRECT OPTION: a
28
Which of the following organisms is viviparous?
A
Tapeworm
B
Snail
C
Sheep
D
Grasshopper
CORRECT OPTION: c
29
The reduction of nitrates to gaseous nitrogen is
A
nitrogen fixing
B
nitrogen cycle
C
ammonification
D
putrefaction
CORRECT OPTION: e
30
The association between protozoa and termites is an example of
A
symbiosis
B
parasitism
C
predation
D
saprophytism
CORRECT OPTION: a
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