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Functioning ecosystems and succession — Question 5

QCAA 2021, Paper 1 · 1 mark

Q5 · 2021 · Paper 1Unclassified1 mark

QUESTION 5

The graph shows changes for a penguin population and the theoretical carrying capacity of the environment.

Biology question figure

Point A on the graph indicates a change in carrying capacity triggered by

(A) an increase in penguin pathogens.

(B) a decrease in the number of mates available.

(C) a reduction in space available for nesting sites.

(D) an introduced disease affecting the penguins’ survival rates.

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