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Biology 1991 WAEC Past Questions

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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
  • E. left auricle and right ventricle
View Answer & Discuss WAEC 1991
27

During which of the following processes is food for animals produced?

  • A. Photosynthesis
  • B. Respiration
  • C. Nutrition
  • D. Digestion
  • E. Transportation
View Answer & Discuss (6) WAEC 1991
28

Pellagra can be prevented by taking food rich in?

  • A. vitamin A
  • B. vitamin B
  • C. Vitamin D
  • D. calcium
  • E. iodine
View Answer & Discuss (8) WAEC 1991
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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
View Answer & Discuss WAEC 1991
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
  • E. Narrow lumen
View Answer & Discuss WAEC 1991
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