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Biology 1998 WAEC Past Questions

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31
Which of the following is a feature of wind pollinated flowers?
  • A. Large and brightly coloured petals
  • B. Possession of sweet scent
  • C. Presence of nectar
  • D. Presence of pollen guides
  • E. Smooth, light and numerous pollen grains
View Answer & Discuss WAEC 1998
32
In testing for starch in a leaf the function of alcohol is to
  • A. kill the cells of the leaf
  • B. soften the veins of the leaf
  • C. aid iodine to penetrate the cells
  • D. be a component of the heating bath
  • E. extract the chlorophyll from the leaf
View Answer & Discuss WAEC 1998
33
Which of the following processes removes CO2 from the atmosphere?
  • A. Respiration
  • B. Photosynthesis
  • C. Transpiration
  • D. Excretion
  • E. Combustion
View Answer & Discuss (2) WAEC 1998
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34
The role of bacteria in the nitrogen cycle includes the following except
  • A. fixing atmospheric nitrogen
  • B. converting ammonia to nitrites
  • C. converting nitrites to nitrates
  • D. converting carbohydrates to carbondioxide
  • E. causing the decay of dead organisms
View Answer & Discuss WAEC 1998
35
The mode of nutrition which describes feeding habit in animals is
  • A. autotrophic
  • B. holozoic
  • C. holophytic
  • D. saprophytic
  • E. photosynthetic
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