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Biology 2017 JAMB Past Questions

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46
Which of the following factors can reduce the population of a community?
  • A. Immigration
  • B. edaphic
  • C. predation
  • D. mutualism
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47
In mosses the structure which performs the function of water absorption is the _________?
  • A. root hairs
  • B. rhizoids
  • C. capsule
  • D. hyphae
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48
How does an enzyme affect the rate of a reaction?
  • A. It lowers the activation energy of the reaction, increasing the reaction rate.
  • B. It raises the activation energy of the reaction, decreasing the reaction rate.
  • C. It lowers the activation energy of the reaction, decreasing the reaction rate.
  • D. It raises the activation energy of the reaction, increasing the reaction rate.
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49
Insects that goes through adult stage without becoming pupa are except ________
  • A. crickets
  • B. cockroach
  • C. grasshopper
  • D. bees
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