In three to five complete sentences describe what you think physical fitness means. Include things a person who was fit could do, as well as how his or her body would work and feel.

They keep your heart, lungs, and circulatory system healthy and improve your overall fitness.

Explanation:

Examples include brisk walking, jogging, swimming, and biking. Strength, or resistance training, exercises make your muscles stronger. Some examples are lifting weights and using a resistance band.

the last statement is correct i.e.

when your heart is not pumping enough blood around your body because your heart is severely failing, you may need an artificial heart. an artificial heart is a mechanical device, about the size of an orange, that is connected to your heart or implanted in your chest to or replace a failing heart.

answer188 to 210 calories;