1999 - JAMB Biology Past Questions and Answers - page 4
31
Th chitin in the exoskeleton of many arthropods is strengthened by
A
calcium compounds
B
organic salts
C
lipids
D
proteins
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32
A
sliding joint
B
hinge joint
C
pivot joint
D
ball-and-socket joint
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33
A
I
B
II
C
III
D
IV
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34
The construction of dams may lead to an increase in the prevalence of
A
typhoid fever, measles and yellow fever
B
tuberculosis, leprosy and trypanosomiasis
C
guinea worm, malaria and tuberculosis
D
malaria, bilharziasis and onchocerciasis
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35
Floating microscopic heterotrophs are mostly grouped as
A
phytoplankton
B
zooplankton
C
microbes
D
nekton
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36
Vaccination is carried out in order to
A
check the production of poison
B
increase the activity of white blood cells
C
increase the number of red blood cells
D
stimulate the production of antibodies
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37
A soil consisting of alumina and iron (II)oxide is known as
A
loamy soil
B
clayey soil
C
laterite
D
podzol
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38
The sign + is used to indicate an association where an organism gains, while 0 is used where an organism is unaffected. An association indicated as +0 is known as
A
predation
B
commensalism
C
parasitism
D
competition
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39
A
1, 2 and 3
B
1, 3 and 7
C
2, 3 and 7
D
2, 4 and 5
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40
A
1 → 2 → 4 → 5
B
1 → 3 → 4 → 5
C
3 → 5 → 6 →7
D
5 → 4 → 3 → 1
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