AP BIOLOGY

Detailed explanation-1: -A whale flipper and a bat wing are also homologous structures in the same sense as a human arm and cat arm with a humerus, radius and ulna, and so on.

Detailed explanation-2: -We can first look at the homologous structures in whales. One major homolgous structure is the fin of a whale. If you look at the skeleton of a whale’s fin, notice that all of the bones match up to comparative bones in other mammals. This is evidence that whales, as mammals, share a common ancestor with other mammals.

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: -Similarly, the leg of a dog, wing of a bird, and fin of a whale are also homologous to the human arm. Such structures are said to have diverged over time, indicating that at one time, they may have had the same function in the common ancestral organism.

Detailed explanation-5: -The arm of a human, the wing of a bird or a bat, the leg of a dog and the flipper of a dolphin or whale are homologous structures. They are different and have a different purpose, but they are similar and share common traits.