2
practice testMultiple Choice

Practice Test

Question 2 • TPS EdX Biology

A population of zebras experienced ten births, six deaths to predation, three deaths to disease, three individuals joining the population, and zero individuals leaving. What is happening to the population growth?

Answer
A
It is staying the same.
B
It is decreasing.
C
It reaches carrying capacity.
D
It is increasing.

Explanation

Population change equals births plus individuals joining, minus deaths and individuals leaving. Here, 10 births + 3 joining − 6 predation deaths − 3 disease deaths − 0 leaving = 4, so the population grows by four zebras. The population is increasing, choice D.

AI-written and checked against the verified answer.

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