AP BIOLOGY

Detailed explanation-1: -Molecular similarities provide evidence for the shared ancestry of life. DNA sequence comparisons can show how different species are related. Biogeography, the study of the geographical distribution of organisms, provides information about how and when species may have evolved.

Detailed explanation-2: -So, Molecular Biology will continue to play an important role in evolutionary classification as it clarifies the nature of genes and the sources of variation. Comparative analysis of DNA and proteins continues to give us an exquisitely detailed view of patterns of variation, common ancestry, and how evolution works.

Detailed explanation-3: -The heritable variation is defined as the variance of the breeding values among individuals, A 2, which is known as the additive genetic variance. (Note that additive genetic variance excludes transient effects transmitted to offspring, such as additive-by-additive epistatic effects).

Detailed explanation-4: -The idea of natural selection is that traits that can be passed down allow organisms to adapt to the environment better than other organisms of the same species. This enables better survival and reproduction compared with other members of the species, leading to evolution.