homolougus or analogous charecteristics shows that organisms originated from common ancestor?
Homologous organs indicates about the organisms showing their presence, must have shared common recent ancestry.
Homologous organs have the same embryonic origin and structure but they may or may not perform the same function in different organisms. They are present in different forms in different organisms. They are the evidence for relatedness among organisms. For example: Thorns of Bougainvillea and tendrils of Cucurbita (both are stem modification).
Homologous organs have the same embryonic origin and structure but they may or may not perform the same function in different organisms. They are present in different forms in different organisms. They are the evidence for relatedness among organisms. For example: Thorns of Bougainvillea and tendrils of Cucurbita (both are stem modification).