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1466
The mechanism of gaseous exchange in living organisms is essentially by
  • A. osmosis
  • B. inhalation
  • C. diffusion
  • D. exhalation
  • E. breathing
View Answer & Discuss (12) WAEC 1991
1467
Which of the following statement is correct about diffusion?
  • A. it involves movement of water molecules only
  • B. Molecules move from a region of higher concentration to a region of lower concentration
  • C. differentially permeable membrane must be present for diffusion to occur
  • D. It involves when a solute can no longer dissolve in a solvent of only solute molecules into the Bowman's capsule
  • E. It occurs when a solute can no longer dissolve in a solvent
View Answer & Discuss (12) WAEC 1991
1468
The process of anearobic respiration of yeast in sugar solution is known as
  • A. oxidation
  • B. fermentation
  • C. tissue respiration
  • D. alcohol production
  • E. decomposition
View Answer & Discuss (5) WAEC 1991
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1469
The following are functions of the skeleton except
  • A. providing support for the body
  • B. protection of delicate internal organs
  • C. maintenance of the shape of the body
  • D. providing attachment for muscles
  • E. controlling growth rate in animals
View Answer & Discuss (4) WAEC 1991
1470
Muscles are attached to bones by means of
  • A. ligament
  • B. cartilage
  • C. synovial membrane
  • D. tendons
  • E. connective tissue
View Answer & Discuss (3) WAEC 1991
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