AP BIOLOGY

Detailed explanation-1: -The wing of a bird and human arm perform different functions but have the same embryonic origin. Such structures are known as. 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 Structures Humans Share With Animals Here are some examples of homologous structures that humans share with other creatures from the animal kingdom. A dolphin’s flipper, a bird’s wing, a cat’s leg, and a human arm are considered homologous structures.

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: -Homologous Structures Examples Both the human arm and the cat arm have a single bone in the upper arm, which we call the humerus, followed by two bones in the forearm–the radius on the more medial side and the ulna on the more lateral side.