A key contribution to Darwin's thinking was the concept of limits put on the geometric growth of populations by nature, originally proposed by:

Karl Popper.

Explanation:

. A key contribution to Darwin's thinking was the concept of limits put on the geometric growth of populations by nature, originally proposed

Karl Popper

clumped distribution, because you'de have all of the population gathered in a relatively small are.

it's the most common because it provides protection and a mate for reproduction

example: humans, seeweed, cattles, etc.