The fittest survive and the unfit are eliminated. Organisms interact with the environment. Biological variation, genetics and natural selection can lead to adaptive changes in organisms.
Survival of the fittest, elimination of the fittest<br>The interaction between organisms and the environment, as well as the variation, inheritance, and natural selection of organisms, can lead to changes in their adaptability
Survival of the fittest, elimination of the unfit.<br> The interaction between organism and environment, biological variation, heredity and natural selection can lead to biological adaptability change.