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Given below is a food web. Population of which of the following will see a decrease if the number of frogs undergo a drastic decrease?

Correct answer: D. Birds

  • A. Mouse
  • B. Grasshopper
  • C. Rabbit
  • D. Birds

Explanation

The number of birds will decrease since snakes can only feed on birds now, so will consume more of them.

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About Scientific Reasoning

Scientific reasoning evaluates hypotheses through observations, variables, controls, measurements and experimental results. Questions involve identifying independent and dependent variables, recognising a fair test, interpreting tables or graphs, distinguishing evidence from opinion, and deciding whether data supports, rejects or leaves a hypothesis unresolved.

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