Question

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

Answer 1

Answer:

homologous structures are there in animals with same structure but various function

for example : forelimbs of humans are for grabbing things but forelimbs of other animals are for various functions

it is necessary that homologous structures must have common ancestors because every thing has its own origin & base . Homologous structures gets their origin from their common ancestors

Explanation:

Answer 2

Explanation:

homologous organs are those organs that have same basic structural plan but different functions