Standard Science Primary 6 Interactions

In a food web, if the population of a secondary consumer decreases significantly, what is the most likely immediate effect on the population of the primary consumer it feeds on?

A The primary consumer population will increase.
B The primary consumer will become a producer.
C The primary consumer population will decrease.
D The primary consumer population will stay the same.
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Worked Solution

Step 1: Identify the relationship (Secondary consumer eats primary consumer). Step [2-9]: A decrease in predators means less predation pressure on the prey. Step [2-9]: This allows more primary consumers to survive and reproduce.

Correct answer: The primary consumer population will increase.

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