Answered

An athlete with a high count of red blood cells will perform well in tests of physical

endurance because

Awaste products will be removed from the body easily.
Bexcess levels of glucose will increase levels of respiration.
Cthe reduced plasma volume will lower carbon dioxide levels.
Dhigh levels of oxygen will be available to the muscles.

Verified Answer :

AL2006

Red blood cells are the carriers of oxygen from the lungs to everywhere else
in the body. If there is a high count of red cells in the blood, then high levels
of oxygen will be available to the muscles.