AP BIOLOGY

Detailed explanation-1: -Homologous organs are organs that have a similar structure but perform different functions in different animals. Although the anatomical structure of the organ is similar the function differs. The wings of birds, hands of humans, and wings of bats are examples of homologous organs.

Detailed explanation-2: -The wing of a bird and the arm of a human are examples of c. homologous structures. This is because they are structures which have a similar evolutionary origin despite the fact that they play different roles.

Detailed explanation-3: -The wing of a bird is a modified forelimb. It is adapted for an aerial mode of living i.e. used for flying. Whereas, the forelimb in humans is called an arm. It is used for various purposes like holding, clutching, lifting, writing, etc.

Detailed explanation-4: -An example of homologous structures are the limbs of humans, cats, whales, and bats. Regardless of whether it is an arm, leg, flipper or wing, these structures are built upon the same bone structure. Homologies are the result of divergent evolution.

Detailed explanation-5: -Its descendants, including whales, lizards, humans, and birds, as well as many others, inherited the tetrapod limb from this ancestor. Structures inherited from a common ancestor are called homologous structures, or homologies.