2002 - WAEC Biology Past Questions and Answers - page 5
41
Measles in infants can be prevented by
A
sleeping under mosquito nets
B
providing clean water supply
C
taking anti-malaria tablets
D
vaccinating young children
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42
Micro-organisms are important in recycling nutrients because
A
they are capable of multiplying quickly
B
they are eaten by large organisms
C
they break down dead organic materials
D
many of them are parasites
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43
A vegetable farmer will benefit from a cattle rearer if
A
the faecal remains of the cattle are made available to the farmer
B
the farmer makes available fresh green vegetables for consumption by the cattle daily.
C
the farmer provides shelter for the cattle and the cattle rearer
D
the cattle rearer makes available meat to the farmer daily
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44
Wildlife conservation is enhanced by
A
enacting laws to encourage poaching
B
discouraging elimination of endangered species
C
encouraging creation of satellite hunting unit
D
suppressing the activities of wildlife conservation agencies
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45
Which of these statements is true about fingerprint patterns?
A
Consistent for a lifetime
B
May be exactly the same for two individuals
C
Prominent only at puberty
D
Correlate with the individual blood group
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46
Some species of animals and plants are considered as endangered, because
A
they are found in large numbers in most habitats
B
they are harmful to theta natural habitats
C
their populations have become so small that they may soon die out
D
they should be killed or only kept in cages
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47
Which of the following is a continuous variation, in human population?
A
Sex
B
Rh factor
C
Height
D
Down`s syndrome
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48
Which of the following statements about blood groups in human is not correct?
A
Siblings may not belong to the same blood group
B
There are four possible blood groups
C
People with blood group O can receive blood from all other groups
D
People with blood group AB are universal recipients
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49
When Mendel crossed round seeds with wrinkled seeds of Pea Plant, what was the ratio of wrinkled seeds
to round seeds in the F2 plants?
A
3 : 1
B
2 : 1
C
1 : 3
D
1 : 2
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50
Which of the following is not a morphological variation in human beings?
A
Size
B
Blood groups
C
Colour
D
Fingerprints.
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