1990 - JAMB Biology Past Questions and Answers - page 3
21
Which of the following animals has homodont dentition?
A
Rat
B
Man
C
Lizard
D
Pigeon
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22
In which of the following does external fertilization takes place?
A
Toad
B
Lizard
C
Bird
D
Cockcroach
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23
In the tapeworm the suckers on the scolex are used for
A
sucking the blood of the host
B
holding fast to the host
C
reproduction
D
locomotion
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24
A feature which adapts birds to flight is the possession of
A
scaly legs
B
light bones
C
two walking legs
D
a pointed beak
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25
The nephridia in the earthworm form part of the
A
reproductive system
B
respiratory system
C
circulatory system
D
excretory system
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26
which of the following disease is rarely spread by a housefly?
A
Yellow fever
B
Dysentry
C
Typhoid fever
D
Poliomyelitis
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27
Which type of the following cells is thin-walled and living at maturity?
A
Collenchyma
B
Sieve tube
C
xylem vessel
D
sclerenchyma
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28
The mode of nutrition in which digestion is extracellular is
A
holophytic
B
parasitic
C
holozoic
D
saprophytic
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29
The first step in the process of photosynthesis is the
A
activation of the chlorophyll
B
photolysis of water
C
reduction of carbondioxide
D
formation of sugar
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30
Which of the following food substance will produce a brick-red colour when warmed with Benedict's solution?
A
Glucose
B
Starch
C
Egg white
D
Maltose
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