Evidence for Evolution

What is evolution?

• The process by which living organisms develop and diversify over time.

• The process of organisms adapting to their environment.

• The process of natural selection leading to new species.

• The process of genetic mutation within a population.

What do similarities in the early embryonic stages of different vertebrate species suggest?

• They will develop into identical adult forms.

• They share a common ancestor.

• They are all aquatic species.

• They have identical genetic sequences.

What does the shared basic set of bones in human arms, cat legs, whale flippers, and bat wings indicate?

• These structures perform the same function in all species.

• These species are not related to each other.

• They are examples of homologous structures, suggesting common ancestry.

• They are vestigial structures with no current function.

Are you enjoying the video lesson?

• Yes

• No

What is considered the strongest evidence to support common ancestry among different organisms?

• Similarities in their fossil records.

• Shared basic cell functions and metabolic processes.

• The presence of homologous structures.

• Shared genetic sequences (DNA).