Standard Science Primary 6 Interactions

Study the food web below. What will happen to the populations of Organism X and Organism Y if the population of Organism Z decreases suddenly?

A Both X and Y increase
B X increases while Y decreases
C Both X and Y decrease
D X decreases while Y increases
Show Worked Solution

Worked Solution

Step 1: Identify the relationship between Z and X. Z eats X, so fewer Z means fewer predators for X, leading to an increase in X. Step [2-9]: Identify the relationship between Z and Y. Y eats Z, so fewer Z means less food for Y, leading to a decrease in Y. Step [2-9]: Final Answer: X increases while Y decreases.

Correct answer: X increases while Y decreases

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