There are at least five evidences of evolutionary relationship. Each are identified and briefly explained below.
1. Biogeography
Biogeography looks at how species are geographically distributed through time. Biogeography can be used to explain how species that share a common ancestor and were geographically separated adapted to their new environments via natural selection.
The fossil record provides a record of how anatomical features of organisms have changed over time. The fossil record...
There are at least five evidences of evolutionary relationship. Each are identified and briefly explained below.
1. Biogeography
Biogeography looks at how species are geographically distributed through time. Biogeography can be used to explain how species that share a common ancestor and were geographically separated adapted to their new environments via natural selection.
The fossil record provides a record of how anatomical features of organisms have changed over time. The fossil record also provides evidence for the period of time during which organisms have been present on Earth.
Homologous structures are organs or bones that are found in different organisms that have similar structures. An example would be the human forearm and flipper of a whale. Each have a humerus, radius, ulna, carpals, metacarpals, phalanges. Organisms that share homologous structures are thought to have come from a common ancestor.
4. Embryology
Embryology is the study of gametes, fertilization, and embryos. The longer embryos of different species are similar, the more closely their evolutionary relationship is through to be.
5. Genetics
The more genes that two organisms have in common, the closer their evolutionary ancestry.
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