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Biology 2009 WAEC Past Questions

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16

A group of rats placed in an air-tight box for some hours died because they

  • A. breathed in air containing nitrogen.
  • B. produced carbon dioxide
  • C. ran short of energy
  • D. used up the available oxygen
View Answer & Discuss (3) WAEC 2009
17
Which of the following organisms have kidney as their excretory organ?
  • A. Fishes, amphibians, birds, man.
  • B. Fishes, amphibians, annelids, insects
  • C. Fishes, reptiles, birds, tapeworms
  • D. Fishes, protozoans, amphibians, man
View Answer & Discuss WAEC 2009
18

Which of the statements below is valid?

  • A. The bird’s blood was always warmer than that of the lizard
  • B. The body temperature of the bird varied less than that of the lizard during changes in environmental temperature
  • C. The body temperature of the bird remained constant despite changes in environmental temperature
  • D. The body temperature of the lizard was always close to that of the environmental temperature
View Answer & Discuss (2) WAEC 2009
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19
What physiological term can he used to
describe the regulation of the body
temperature of the lizard? '
  • A. Homeostasis
  • B. Homoithermy
  • C. Poikilothermy
  • D. Osmoregulation
View Answer & Discuss WAEC 2009
20
The reason why hospitals use saline solutions as drip instead of water is
  • A. because salt is a preservative
  • B. to prevent contamination of the body
  • C. to maintain the composition of the body fluids
  • D. to increase the number of blood cells
View Answer & Discuss (6) WAEC 2009
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