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3 marksPhotosynthesis and Energy Flow

CSEC Human and Social Biology · 2021 · Paper 2 · Question 2(b)(iii)

In a garden scenario, mealy bugs feed on croton leaves, ladybugs eat mealy bugs, a frog eats ladybugs, and a garden snake eats the frog.

Explain how burying the dead snake near the roots of the Croton plant would be beneficial to the plant.

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Other parts of this question

  1. 2(a)(i)State what the arrows labelled A represent in Figure 1.[1 mark]
  2. 2(a)(ii)State what process is occurring at the arrow labelled B in Figure 1.[1 mark]
  3. 2(a)(iii)Identify which organism is the primary consumer and which organism is the producer in the food chain shown.[2 marks]
  4. 2(b)(i)Construct a food chain representing the information in the scenario.[5 marks]
  5. 2(b)(ii)Name TWO types of organisms that would be responsible for decomposing the dead garden snake.[2 marks]
  6. 2(b)(iv)State whether or not Stacy would have the same number of snakes in her yard as frogs.[1 mark]

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