Question

what are homologous structures give an example is it necessary that homologous structures give an example is it necessary that, homologous structures always have a common ancestor

Answer 1

the term homologous structure pertain to the structure in different species with a common ancestor. homologous structure may not necessarily perform the same function. for instance the forelimb of humans and bats are homologous structure

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.