1991 - WAEC Biology Past Questions and Answers - page 3
21
The part of the brain responsible for the control the controls of voluntary movement and interpretation of sensation is the
A
cerebrum
B
cerebellum
C
optic lobe
D
medulla oblongata
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22
Which part of the ear is responsible for the maintenance of balance?
A
Ossicles
B
Tympanic membrane
C
Eustachian tube
D
semicircular canals
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23
Which of the following is not part of the female reproductive system?
A
Ovary
B
Seminal vessicles
C
Uterus
D
Vagina
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24
Which of the following substance from the mother's blood diffuse through the placenta into the blood vessels of the feotus?
A
Carbon dioxide and oxygen
B
Glycogen and starch
C
Urea and carbon dioxide
D
Glucose and oxygen
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25
Which of the following is not seen in the transverse section of a young monocotyledonous stem?
A
Parenchyma
B
Phloem
C
Xylem
D
Cambium
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26
The bicuspid valve is located between
A
left auricle and left ventricle
B
right auricle and right ventricle
C
left and right ventricle
D
left and right auricle
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27
During which o the following processes is food for animals produced?
A
Photosynthesis
B
Respiration
C
Nutrition
D
Digestion
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28
Pellagra can be prevented by taking food rich in
A
vitamin A
B
vitamin B
C
Vitamin D
D
calcium
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29
In testing for a reducing sugar, the food substance is usually warmed with
A
sulphuric acid
B
million's reagent
C
sudan III
D
Benedicts's solution
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30
Which of the following adapts the aorta to the high pressure of the blood from the heart?
A
Thin walls
B
Fragile membrane
C
Thick elastic walls
D
stiff walls
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