Standard Science Primary 6 Interactions

Study the food web below. If a disease kills all of Organism R, how would the population of Organism P and Organism S be affected?

A P increases, S increases
B P decreases, S increases
C P increases, S decreases
D P decreases, S decreases
Show Worked Solution

Worked Solution

Step 1: Identify the roles. P is the producer, R eats P, and S eats R. Step [2-9]: If R is removed, P will have fewer predators, so its population increases. Step [2-9]: S will have less food available, so its population decreases.

Correct answer: P increases, S decreases

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