You are presented with the question "What sort of circulatory system do frogs, toads, and salamanders share?" and the following answer choices: - live birth - It helps them survive - matter vibrating - two-chambered heart - Veins and arteries. - biological diversity - three-chambered heart - four-chambered heart Now knowing that amphibians have a relatively complex circulatory system with a three-chambered heart and frogs, toads and salamanders are amphibians, choose the best answer.
The answer to this question is:
three-chambered heart