.............The answer is D
the skeletal and muscular system.
A.
The endurance of an athlete is dependent on his or her body's ability to uptake oxygen efficiently, a task carried out by the red blood cells.
Answer:
Cobalt
Explanation:
Cobalt has the least requirement a day for an individual, at only 0.0015mg for both men and women. It can be obtained from fish, nuts and green leafy vegetables. Cobalt is utilized in the body to nourish digest and process vitamin B12.
Hope this helps:)
Answer: A constitution is a set of fundamental principles or established precedents according to which a state or other organization is governed.
Explanation:
