Question

What are homologous structures? Give an example. Is it necessary that homologous structures always have a common ancestor?

Answer 1

ANSWER

Organs, which have the same basic structure (or same basic design), but perform different functions are called homologous structure, e.g. forelimbs of reptiles amphibians, birds and mammals.

Yes, homologous structures are inherited from a common ancestor, e.g. the mammals, birds, reptiles and amphibians all have four limbs. The basic structure of limbs is similar though it has been modified to perform different functions in various vertebrates. This. shows that they have evolved from a common ancestor.

Brainlist Please ☺️.

Answer 2

Answer:

Homologous organs are those organs which have the same basic structure design and development or gin bit have different functions and appearance

example : Frog , Lizard , bird, human

No, occasionally convergent evolution can occur where two different species share homologous organs .

Yes if they do not shares ancestors they called a homologous structure.

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