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Biology Past Questions and Answers

Jamb 2011 Biology Questions

Question 21:
The type of asexual reproduction that is common to both Paramecium and protists is
  • A Budding
  • B Sporulation
  • C Fragmentation
  • D Fission
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Question 22:
In nature, plants and animals are perpetually engaged in mutualism because
  • A They are rivals
  • B All animals rely on food produced by plants
  • C They utilize respiratory wastes of each other
  • D They are neighbours
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Question 23:
In an experiment to determine the percentage of humus and water in a soil sample, the following results were obtained
Weight of the evaporating basin alone = 80.5g
Weight of basin and soil = 101.5g
Weight after drying the soil in the oven = 99.0g
Weight of basin and roasted soil = 95.5g
The percentage of humus in the soil sample is
  • A 16.7%
  • B 17.6%
  • C 26.7%
  • D 16.2%
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Question 24:
An example of a filter -feeding animal is
  • A Shark
  • B Butterfly
  • C Whale
  • D Mosquito
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Question 25:
Which of the following is a feature of the population pyramid of a developing country?
  • A Long lifespan
  • B Low birth rate
  • C Low death rate
  • D Short lifespan
View Answer & Explanation