Question

Homologous organs in vertebrates indicate that ________

• A. all vertebrates share a common ancestry.
• B. all vertebrates do not share a common ancestry
• C. all vertebrates evolved from higher vertebrates
• D. organs evolved from cells and organ systems

Answer 1

The correct option is A

all vertebrates share a common ancestry.

Homologous organs are those organs which share a common structure and origin, but have different functions. Homologous organs in vertebrates indicates that all vertebrates share a common ancestor. Example: forelimbs in all vertebrates.