Maintaining a healthy weight allows the respiratory system to work more effectively because

(1 point)
Responses

oxygen is being delivered more adequately.
oxygen is being delivered more adequately.

the heart does not have to pump as forcefully.
the heart does not have to pump as forcefully.

the capillaries are constricted.
the capillaries are constricted.

the lung capacity allows for small amounts of air.
the lung capacity allows for small amounts of air.

oxygen is being delivered more adequately