Which of the following is a component of mental health / emotional health? a staying free of disease b spiritual health c maintaining healthy relationships d avoiding the use of tobacco, alcohol, and other drugs

Blood cells bring oxygen to cells and take carbon dioxide away. true or false

The amount of oxygen that is actually used by the body during the rest or a hand workout is determined by the heart rate, the stroke volume, and the amount of a. blood circulating in the vascular system b. oxygen removed from the vascular system c. oxygen provided to the vascular system d. blood that individual has in the body e. hemoglobin in the red blood cells

True or false a fertilized cell divides many times to form an embryo