AP BIOLOGY

Detailed explanation-1: -Homologous structures can be defined as the organs or skeletal elements of animals and organisms that, by virtue of their similarity, belong to a common ancestor. These structures do not necessarily have to look exactly the same, or have the same function.

Detailed explanation-2: -Homologous structures are structures that are similar in related organisms because they were inherited from a common ancestor. These structures may or may not hav e the same function in the descendants. Figure below shows the hands of several different mammals. They all have the same basic pattern of bones.

Detailed explanation-3: -Homologous structures are similar physical features in organisms that share a common ancestor, but the features serve completely different functions. An example of homologous structures are the limbs of humans, cats, whales, and bats.

Detailed explanation-4: -Structures that arise in organisms that share a common ancestor, but perform different structures are called homologous structures. An example of a homologous structure is the “arm” of a mammal.

Detailed explanation-5: -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.