HOTS Science Primary 6 Interactions

In the food web shown below, a disease caused the population of Organism D to decrease sharply. Which of the following is a possible immediate consequence?

A The population of Organism B will decrease.
B The population of Organism C will remain the same.
C The population of Organism E will decrease.
D The population of Organism A will increase.
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Worked Solution

Step 1: Identify that Organism D is a prey for Organism E and a predator for Organism B. Step 2: If D decreases, its predator (E) will eat more of its alternative prey (Organism B) to survive. Step 3: Therefore, the population of Organism B will decrease immediately due to increased predation pressure.

Correct answer: The population of Organism B will decrease.

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