First slide

Populations

Question

The following graph depicts changes in two populations (A and B) of herbivores in a grassy field. A possible reason for these changes is that

Difficult

A

Population A produced more offspring than population B
B

Population A consumed the members of population B
C

Both plant populations in this habitat decreased
D

Population B competed more successfully for food than population A.

Solution

The size of population A is decreasing while the size of population B is increasing. So, it can be inferred that population B is competitively superior to population A.

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