Question

what are homologous structure. Give example. It is necessary that homologous structure always have common ancestor ​

Answer 1

Explanation:

homologous organs are the organs which perform different functions but similar in their anatomical structure . ex : forelimbs of human being , cheetah , bat ( wings ) etc . are similar in their internal apperance but perform different functions. yes it is necessary these structures have common ancestry ..

Answer 2

Answer:

→ The structures which perform different functions in different organisms but share similarity in their anatomy are called homologous structures.

→ Examples are

• Forelimbs of whales, bats, cheetah and human.
• Vertebrate hearts or brains

• Thorn of Bougainvillea and tendril of Cucurbita.