2008 - JAMB Biology Past Questions and Answers - page 4
31
Genetically modified food products have not become universally accepted because
A
they are not tasty as others produced by conventional means
B
they are usually costlier than others produced by conventional means
C
their effects on human consumers is not yet fully understand
D
the technology can be applied only in developed countries
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32
A major adaptive feature of endoparasites is the
A
loss of the organ of movement
B
presence of claws
C
loss of the central nervous system
D
presence of piercing mouthparts
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33
The abilty of a chameleon to change its colour is an adaptive future for
A
attraction
B
defence
C
display
D
attack
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34
Which of the following is the most advanced evolutionary development in plants?
A
possession of unicellular structures
B
development of flowers
C
dispersal of spores
D
development of secondary thickening
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35
Which of the following is a major cause of variation among organisms?
A
Inbreeding
B
Backcrossing
C
Sexual reproduction
D
Gene dominance
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36
A
l
B
ll
C
lll
D
lV
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37
A
sexual
B
conjugation
C
binary fission
D
budding
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38
A
pulmonary artery
B
pulmonary vein
C
carotid artery
D
jugular vein
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39
A
ll and lll
B
lll and lV
C
l and IV
D
l and lll
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40
A
the body temperature in ll varies with that in l
B
the body of temperature in l is independent of external temperature
C
l and ll maintain constant body temperature
D
external temperatures affect the body temperature of l and ll
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