2006 - JAMB Biology Past Questions and Answers - page 4

31
The organ through which the embryo receives food, water and oxygen is labelled
A
III
B
IV
C
II
D
I
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32
Mammals are capable of producing hypertonic urine mainly because of re-absorption in the
A
Bowmans capsule
B
Urethra
C
Ureter
D
Loop of henle
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33
Using the diagram, sexual reproduction is illustrated in
A
ii
B
i
C
iii
D
iv
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34
Using the diagram, A plant that exhibits the type of reproduction shown in IV is
A
cola
B
ginger
C
bryophyllum
D
sugar cane
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35
Using the diagram, the part labelled IV is for
A
excretion
B
nourishment
C
protection
D
respiration
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36
In the diagram, the organ through which the embryo receives food, water and oxygen is labelled
A
iii
B
iv
C
ii
D
i
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37
The diagram represents the structure of
A
proteins
B
chromosones
C
RNA
D
DNA
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38
In the diagram, the part labelled I represents the
A
base pairs
B
ribose sugar
C
phosphate linkage
D
deoxyri-bose sugar
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39
In the diagram, the change in the length of the neck of the giraffes shown was brought about by
A
geographical isolation
B
predation
C
symbiosis
D
natural selection
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40
In the diagram, the variation illustration is
A
discontinuous
B
morphological
C
physiological
D
biochemical
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