The true statement about natural selection is:
"Natural selection produces animals fit for their environment."
Natural selection is a process by which individuals that are better adapted to their environment tend to survive and reproduce more successfully than others. This process can lead to the evolution of traits that enhance an organism's fitness in its specific environment. The other statements are inaccurate:
- Natural selection applies to all living organisms, not just animals.
- Natural selection is a mechanism of evolution, not the other way around; evolution encompasses various processes, including natural selection.
- Natural selection does not necessarily produce animals that are "faster and stronger"; it produces traits that are advantageous for survival and reproduction in a given environment, which may vary widely among species.