One key principle of natural selection is that there is competition for resources is

True.

Explanation:

Charles Darwin's proposed mechanism for biological evolution by natural selection. Because there are limited resources in nature, species with heritable characteristics that favor survival and reproduction tend to leave more offspring than their counterparts, allowing the characteristics to increase in frequency over the following generations. This method was elegant and logical, and it explained how organisms could evolve in such a way as to become better adapted over time to their environments.

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