EVERYDAY SCIENCE

Detailed explanation-1: -Organs that have the same internal structure but perform different functions are called homologous organs. The presence of homologous organs in different organisms indicates that they have evolved from a common ancestor. Example: forelimbs of humans and lizards.

Detailed explanation-2: -Comparative Anatomy Homologous structures are structures that are similar in related organisms because they were inherited from a common ancestor. These structures may or may not have the same function in the descendants.

Detailed explanation-3: -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-4: -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-5: -A common example of homologous structures in evolutionary biology are the wings of bats and the arms of primates. Although these two structures do not look similar or have the same function, genetically, they come from the same structure of the last common ancestor.