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Biology 1991 WAEC Past Questions

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31
The part of the alimentary system of a bird where grinding of maize occurs is the
  • A. crop
  • B. stomach
  • C. gizzard
  • D. cloaca
  • E. rectum
View Answer & Discuss WAEC 1991
32
Natality is a factor affecting population density because it involves
  • A. increase in population due to immigration
  • B. increase in population due to emigration
  • C. the number of mature females in the population
  • D. the number of females in the population
  • E. the number of all young ones produced in the population
View Answer & Discuss WAEC 1991
33
The female part of a flower consist of the
  • A. stigma, style and ovary
  • B. petals, sepals and anthers
  • C. stigma, sepals and anthers
  • D. filaments, style and pollen grain
  • E. sepals, stigma and pollen grain
View Answer & Discuss WAEC 1991
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34
Puddles,ponds, rivers, lakes, seas and ocean are grouped together as
  • A. ecosystem
  • B. biosphere
  • C. terrestrial habitat
  • D. marine habitat
  • E. aquatic habitat
View Answer & Discuss WAEC 1991
35
Which of the following would be the primary producer in a food chain?
  • A. Saprophytes
  • B. Herbivores
  • C. Carnivores
  • D. Green plants
  • E. Parasites
View Answer & Discuss WAEC 1991
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