2000 - WAEC Agriculture Past Questions and Answers - page 4
31
Disease causing organisms are referred to as
A
vectors
B
pathogens
C
pests
D
insects
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32
Which of the following is not a viral disease of crops?
A
cocoa swollen shoot
B
tobacco mosic
C
tomato leaf curl
D
banana blight
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33
Smut diseases are often found on
A
maize
B
cassava
C
cowpea
D
grapes
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34
The mosaic appearance on cassava leaves is caused by
A
pests
B
bacteria
C
virus
D
nematode
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35
Progesterone is secreted by the
A
corpus luteum
B
seminal vesicle
C
cowper's gland
D
testes
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36
The hormone responsible for milk let-down in cows is
A
oxytocin
B
adrenaline
C
oestrogen
D
progesterone
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37
The secretion of reproductive and growth hormone in animals is controlled by the
A
prostate gland
B
pituitary gland
C
adrenal gland
D
ovary
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38
During the process of egg formation, albumen deposition begins in the
A
ovary
B
magnum
C
isthmus
D
uterus
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39
Parturition in the doe (rabbit) is referred to as
A
kidding
B
kindling
C
garrowing
D
lambing
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40
Maintenance of osmotic balance in body cells of animals is regulated by
A
calcium and phosphorus
B
magnesium and calcium
C
sodium and potassium
D
iron and phosphorus
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