Anticipate what could happen to an endangered species due to a variation that provides an advantage for this species. And what would result if the variation is a disadvantage? What do homologous structures indicate? Give an example of two different speci

How can a scientist determine the age of a fossil?

 

Anticipate what could happen to an endangered species due to a variation that provides an advantage for this species. And what would result if the variation is a disadvantage?

 

What do homologous structures indicate? Give an example of two different species with a homolog structure between them.