AP BIOLOGY

Detailed explanation-1: -True or False: Organisms with analogous structures did not come from shared ancestors. The correct answer is True! Homologous structures occur in organisms that are derived from a common ancestor, while analogous structures do not.

Detailed explanation-2: -To be considered analogous, the structures between the two species have to have the same function but they do not necessarily have the same anatomical features. Because analogous structures differ in anatomy as well as developmental origin they do not implicate a common ancestral origin.

Detailed explanation-3: -Homologous structures are similar structures that evolved from a common ancestor.

Detailed explanation-4: -Homologous structures are organs or skeletal elements of animals and organisms that, by virtue of their similarity, suggest their connection to a common ancestor. These structures do not have to look exactly the same, or have the same function.