Evolution can be defined as the process of the change occurring in a population over a period of time through genetic variation. This genetic variation and the process of natural selection help a species to evolve by selecting the traits that helps it to better adapt to the environment. These genetic variations are inherited over time as the species continue to evolve.
Hence, the correct answer is 'change in population through genetic variation over time'.
It should be 4. As we can see the relative reactivity of enzymes increase in skins a which has a basic rnvironment. Correct me if I’m wrong please. Thanks
