Question

what could these similar bones tell us about the evolution of these organisms? whales and humans are not related. only humans and horses share a common ancestor. horses are more closely related to humans than cats. humans, horses, cats, and whales share a common ancestor.

Explanation:

Similar bones (homologous structures) suggest common ancestry. Humans, horses, cats, and whales are all mammals and likely share a distant common - ancestor. The presence of similar bone structures is evidence of evolutionary relationships.

Answer:

Humans, horses, cats, and whales share a common ancestor.