AP BIOLOGY

Detailed explanation-1: -DNA comparisons can show how related species are. Biogeography. The global distribution of organisms and the unique features of island species reflect evolution and geological change.

Detailed explanation-2: -Comparing DNA Darwin could compare only the anatomy and embryos of living things. Today, scientists can compare their DNA. Similar DNA sequences are the strongest evidence for evolution from a common ancestor.

Detailed explanation-3: -Comparing sections of DNA in difference species has shown that even organisms that seem to be different, actually have large sections of identical DNA. Embryology shows the similarities that organisms have at a very early stage of development.

Detailed explanation-4: -Evolution accounts for the conspicuous patterns of similarities and differences among living things over time and across habitats through the action of biological processes such as mutation, natural selection, symbiosis and genetic drift.

Detailed explanation-5: -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.