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Biology 2009 WAEC Past Questions

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31
Which of the following statements about ecosystems is false?
  • A. All the energy entering the ecosystem is passed on to decomposers
  • B. The primary producers provide energy for herbivores and carnivores
  • C. Ecosystems must start with the capture of energy by autotrophs
  • D. Energy transfer from one trophic level to the other is not 100% efficient.
View Answer & Discuss WAEC 2009
32
What is the critical limiting factor for plants below the photic zone is an aquatic ecosystem?
  • A. Availability of nutrients
  • B. Availability of water
  • C. Intensity of light
  • D. Carbon dioxide concentration
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33
Which of the following instruments is used to estimate the number of plants in a habitat?
  • A. Pooter
  • B. Pitfall trap
  • C. Quadrat
  • D. Sweep net
View Answer & Discuss WAEC 2009
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
34
Which of the following statements is true about sandy soil? It
  • A. has limited air space
  • B. is light and easy to dig
  • C. drains slowly
  • D. is heavy and poorly aerated
View Answer & Discuss (1) WAEC 2009
35
Which of the following organisms is a primary consumer?
  • A. Dog
  • B. Sheep
  • C. Grass
  • D. Fungus
View Answer & Discuss (4) WAEC 2009
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts