Which of these pairs of body structures best illustrates a homologous relationship? a) the leg of a horse and the leg of a dog
b) the wing of a bat and the wing of a bird
c) the fin of a dolphin and the fin of a shark
d) the beak of a bird and the beak of a turtle

Hurry which of these is true about index fossils? a) are very scarcely found b) used as guides in relative dating c) found in the youngest layer of the rock d) used as reference points in absolute dating

Consider this plant cell which organelle is labeled g

Cladistics is a way of classifying organisms by examining the characteristics of their ancestors and descendants and depicting the relationships in a cladogram. which of the following best describes a challenge in classifying organisms this way? a. there are millions of species on earth, and a cladogram is not a practical means for classifying all of them. b. it is impossible to tell which organisms are most closely related to each other using a cladogram. c. cladograms are detail-oriented and do not provide a useful understanding of evolutionary relationships. d. there is a limited number of ways to organize the information, so most cladograms end up looking very similar.