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Biology 2001 WAEC Past Questions

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21

The effect of the contraction of the muscles of the diaphram is that

  • A. he volume of the thoracic cavity increases.
  • B. more carbon dioxide is expelled through the nostrils
  • C. the rib cage is drawn inwards
  • D. the intercostal muscle becomes relaxed
View Answer & Discuss (2) WAEC 2001
22
Which of the following is an excretory product of Amoeba?
  • A. Urea
  • B. Ammonia
  • C. Uric acid
  • D. Amino acid
View Answer & Discuss WAEC 2001
23
Which of the following processes occurs when the body temperature of a mammal rises above the normal?
I The arterioles in the skin dilate. II Sweat production is reduced. III The erector muscles contract.
  • A. I only
  • B. II only
  • C. I and III only
  • D. II and III only
View Answer & Discuss (2) WAEC 2001
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24

The following functions are associated with the liver except

  • A. regulation of blood sugar
  • B. production of heat
  • C. production of fibrinogen
  • D. production of vitamin
View Answer & Discuss (16) WAEC 2001
25
Short-sight could be corrected with the use of
  • A. convex lens
  • B. cylindrical lens
  • C. concave lens
  • D. bifocal lens
View Answer & Discuss WAEC 2001
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