1990 - WAEC Biology Past Questions and Answers - page 4
31
The structures labelled III, VI, IV and II respectively represent the
A
uterus, cervix, oviduct and ureter
B
cervix, oviduct, uterus and ureter
C
oviduct, uterus, ureter and cervix
D
vagina, cervix, oviduct and uterus
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32
The gamete is produced in the structure labelled
A
I
B
II
C
IV
D
VI
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33
What is the difference between viviparous and oviparous animals?
A
Possession of yolked eggs
B
Laying of unfertilized eggs
C
Possession of yolkless eggs
D
Protection of eggs from predator
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34
The structure of the embryo which develops and makes contact with the uterine
wall is known as the
wall is known as the
A
umbilical cord
B
placenta
C
allantois
D
amnion
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35
The organ located in the mammalian abdominal cavity just below the diaphragm
and lying on top of the stomach is the
and lying on top of the stomach is the
A
bladder
B
intestine
C
liver
D
pancreas
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36
Which of the following is the effect of using artificial pollination in plant breeding?
A
Production of healthy crops
B
Improvement of the variety of crops
C
Making crops susceptible to diseases
D
Lengthening the maturity time of crops
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37
A dry indehiscent fruit containing one seed and possessing a hairy pappus is described as
A
a nut
B
a drupe
C
a cypsela
D
a follicle
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38
Thunderstorm can be beneficial to plants because it
A
kills the pest that attacks crops
B
destroys some of the major crops
C
adds nitrates to the soil
D
adds lime to the soil
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39
Which of the following is a nitrifying bacterium
A
Nitrobacter
B
Rhizobium
C
Azotobacter
D
Clostribium
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40
Which of the following reagents is used for the test for starch?
A
Million’s reagent
B
Fehling’s’ solution
C
Sudan III
D
Iodine solution
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