A population is likely to increase in size if: a. there are more post-reproductive adults than juveniles. b. parasites increase in abundance. c. its population pyramid is narrower at the base than in the middle. d. its reproductive rate is greater than replacement level fertility.
Added by Xavier G.
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There are more postreproductive adults than juveniles: This scenario is unlikely to result in an increase in population size because postreproductive adults are no longer capable of reproducing, so they cannot contribute to population growth. b. Parasites Show more…
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