Cardiovascular fitness is the ability of the heart to supply oxygen to muscles for an extend period of time. Heart belongs to what system? A. Cardiovascular
B. Digestive
C. Respiratory
D. Skeletal​

Children's reactions to divorce often include which of the following groups of behaviors? a. resentment, anxiety, guilt, and anger b. joy, relief, and happiness c. talking too much and desiring dramatic play d. attachment to adults and seclusion from other children

List several ways that negative life events (death in the family, being laid off, etc) may affect your physical health.

What type of breathing, also known as balanced breathing, makes the respiratory rhythm more regular, which in turn has a soothing effect on the entire nervous system?