What is the first stage in the star life cycle?

The ocean layer of a rapid temperature change with deph is known as the

Plzz hurry im being timed during times of vigorous physical activity, muscles require a constant supply of oxygen. how does the body respond to these needs? a. breathing rate and heart rate both decrease. b. breathing rate and heart rate both increase. c. heart rate decreases, but breathing rate remains stable. d. breathing rate increases, but heart rate remains stable.

Which description provides the best objective summary of the article in the passage?