The definition of cardiovascular endurance is
a. The ability of the heart to provide oxygen to the muscles during physical activity
prolonged period of time
b. The ability of the lungs to provide oxygen to the heart during physical activity for a
prolonged period of time

antibodies

explanation:

fluid balance is an aspect of the homeostasis of organisms in which the amount of water in the organism needs to be controlled, via osmoregulation and behavior, such that the concentrations of electrolytes (salts in solution) in the various body fluids are kept within healthy ranges. the core principle of fluid balance is that the amount of water lost from the body must equal the amount of water taken in.

there should be recorded video of the class under the assignments for the day

well wheres the question