Similarities in the structures of two different species provide evidence that the species evolved from a common ancestor. This type of evidence includes similar structures that have different functions. Which of the following pairs of features have a similar structure but have a different function in each organism? a. a dolphin fin and a shark fin.
b. human fingernails and monkey fingernails.
c. the front leg of a cat and a wing of a bat.
d. the wing of a bumble bee and the wing of a bird.