EVERYDAY SCIENCE

Detailed explanation-1: -Structures that evolve in living organisms that share a common ancestor are known as homologous structures. Analogous structures are those that have evolved separately in different living organisms yet function similarly or identically.

Detailed explanation-2: -Homologous structures are similar physical features in organisms that share a common ancestor, but the features serve completely different functions. An example of homologous structures are the limbs of humans, cats, whales, and bats.

Detailed explanation-3: -homology, in biology, similarity of the structure, physiology, or development of different species of organisms based upon their descent from a common evolutionary ancestor.

Detailed explanation-4: -Homologous structures are those from organisms that share a common ancestor. (Ref. 1) The similarity in the anatomical features can be used to support conjectures regarding their evolutionary histories.

Detailed explanation-5: -Similar traits can be either homologous or analogous. Homologous structures share a similar embryonic origin; analogous organs have a similar function. For example, the bones in the front flipper of a whale are homologous to the bones in the human arm. These structures are not analogous.