What Are the Different Forearm Bones?

A homologous organ refers to the fact that certain organs of different organisms have the same basic structure, mutual relationship with the organism, and the process of embryonic development, but they are sometimes not similar in shape and function.

Homologous organ

The terrestrial vertebrate's lungs and fish salamanders are also homologous organs. From the perspective of embryonic development, the lungs and tadpoles both originated from the prominence of the embryonic gastrointestinal tract; from an evolutionary perspective, the amphibians' lungs evolved from the tadpoles of the ancient total finfish. Plants also have homologous organs. For example, potato tubers and grape tendrils are metamorphoses of stems; pea tendrils and barberry spines are homologous organs and leaves. Special attention is paid to the study of homologous organs in comparative anatomy, which provide direct evidence for biological evolution. In addition, bird feathers are also homologous to reptile scales.

Also called homologous structures: structures whcih meet different needs but develop from the same body parts, are known as homologous sturctures.