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Biology 1995 WAEC Past Questions

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36

The graphs above show the results of experiments which investigated the effect of temperature and oxygen on the rate of uptake of certain ions labelled X and Y by a plant root. Use them to answer the question

Which of the temperature ranges will likely favour the plant best?

  • A. 0 -10oC
  • B. 15.-20oC
  • C. 30- 40oC
  • D. 45 - 50oC
  • E. above 50oC
View Answer & Discuss (4) WAEC 1995
37
Which of the following is the correct chain for the organism found in an aquatic community?
  • A. Paramecium, Phytoplankton, Prawn, Waterflea, Tilapia, Shark
  • B. Waterflea, Paramecium, Phytoplankton, Prawn, Tilapia, Shark
  • C. Phytoplankton, Waterflea, Paramecium, Prawn, Shark, `tilapia
  • D. Phytoplankton, Paramecium, Waterflea, Prawn, Tilapia, Shark
  • E. Paramecium, Phytoplankton, Waterfiea, Prawn, Shark, Tilapia
View Answer & Discuss (3) WAEC 1995
38
In a food chain the position occupied by an organism is called
  • A. the trophic level
  • B. energy level
  • C. the feeding level
  • D. the habitat level
  • E. niche
View Answer & Discuss (4) WAEC 1995
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39
Which of these statements about food chain is not correct?
  • A. Animals in the chain are consumers
  • B. A food chain usually begins with a green plant
  • C. All organisms in a food chain are animals
  • D. Living things are dependent on one another
  • E. The food chain involves energy transfer in an ecosystem
View Answer & Discuss (3) WAEC 1995
40
Which of these is not applicable to the circulation of water- in nature?
  • A. Water removed from oceans are Permanently lost
  • B. Water constantly evaporates from the seas, rivers, lakes and soil
  • C. Water vapour rises. cools, condenses and precipitates as rain and dew
  • D. Water is absorbed by plants and animals from their external environment
  • E. Plants lose water by transpiration and decay
View Answer & Discuss (1) WAEC 1995
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