Consider the differences in heart structure between frogs and humans. How might these differences influence the physical activity levels and endurance of each organism?(1 point)

Question

Responses

The human heart's four chambers and double circulation probably support higher physical activity levels and greater endurance compared to the frog's three-chambered heart and incomplete double circulation.
The human heart's four chambers and double circulation probably support higher physical activity levels and greater endurance compared to the frog's three-chambered heart and incomplete double circulation.

The frog's heart structure allows for higher physical activity levels and greater endurance than the human heart.
The frog's heart structure allows for higher physical activity levels and greater endurance than the human heart.

Both heart structures support the same levels of physical activity and endurance.
Both heart structures support the same levels of physical activity and endurance.

The frog's heart structure supports higher endurance but lower physical activity levels compared to the human heart.

Answer 1

The correct response is:

The human heart's four chambers and double circulation probably support higher physical activity levels and greater endurance compared to the frog's three-chambered heart and incomplete double circulation.

This is because the four-chambered heart of humans allows for more efficient separation of oxygenated and deoxygenated blood, leading to better oxygen delivery to tissues. This adaptation supports higher metabolic demands during physical activity and contributes to greater endurance compared to frogs, which have a three-chambered heart that cannot completely separate the two types of blood, resulting in less efficient oxygenation.