Answer:
C. I and II only
Explanation:
i took the test and got it right
Answer:
165329847 te amo bro that's it
A stem cell is an extraordinary, early stage, unspecified cell that has the potential to develop into a number of specialized cell types.
there important because they can replace cells that have been lost or damaged
C. A Material that consists of one or more cells is a living organism
Answer:
A) Cardio respiratory fitness is the ability of the cardiovascular and respiratory systems to supply oxygen to muscles.
Explanation:
Cardio respiratory fitness is referred to as the ability of the cardiovascular and respiratory systems to supply oxygen to muscles. Constant exercise enables the circulatory and respiratory systems to be more efficient and effective by making the muscle of the heart large enough to allow more blood to be pumped with each beat and an expectant increase in the number of arteries in the skeletal muscles which supply blood to the active muscles. Exercise enhances the respiratory system as well as the heart when it increases the amount of oxygen that the body inhales and shared to the body tissues.