2008 - JAMB Biology Past Questions and Answers - page 5

41
Use the diagram above to answer this question. The animal represented by l is a
A
poikilotherm
B
homoiotherm
C
carnivore
D
herbivore
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42
In the diagram, the illustration is a typical example of a plant pollinated by
A
wind
B
man
C
insects
D
birds
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43
In the diagram, the part labelled I represents the
A
stationary phase
B
lag phase
C
log phase
D
steady phase
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44
In the diagram, the part labelled IV indicated that the yeast population has
A
reached its maximum size
B
reached senescence
C
stopped metabolizing food
D
started dying
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45
In the diagram, if species i, ii and iii interact in a community, which of the following statement is true?
A
the population of species ii is growing at a slow rate
B
the population of species iii has reached its carrying capscity?
C
the population of species I has become extinct
D
the population of species I is always
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46
In the diagram, the population size of species II on the 20th day is
A
100
B
200
C
300
D
400
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47
In the diagram, which of the four offspring of the cross will be sort if T the gene for tallness is
A
i
B
ii
C
iii
D
iv
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48
In the diagram, the genotypic ratio of the offspring of the cross is
A
1:2
B
1:2:1
C
1:1:1:1
D
3:1
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49
Use the diagram above to answer this question. The male inflorescence is labelled
A
i
B
ii
C
iii
D
iv
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50
The natural process that produces adaptive evolutionary changes is
A
Mutation
B
Gene flow
C
Genetic drift
D
Natural selection
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