EVERYDAY SCIENCE

Detailed explanation-1: -Such traits or structures descending from a common ancestor have a similar embryonic origin but perform different functions known as homologous structures. So, the correct answer is (A), homologous structures.

Detailed explanation-2: -Answer and Explanation: 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: -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-4: -Flippers allow the seal to swim, birds fly using their wings and humans perform a variety of functions using their arms. Such structures are homologous to each other.

Detailed explanation-5: -Homologous Structures Example A great example of homologous structures are the wings of a bat and the arms of a human. Bats and humans are both mammals, so they share a common ancestry. Both a bat’s wing and a human’s arm share a similar internal bone structure, even though they look very different externally.