Most of the ATP required for a 200-meter run by a trained runner ...

[Jipu 123]

Most of the ATP required for a 200-meter run by a trained runner comes from the ____ system.
 a. hyponatremic
  b. ATP-CP
 c. lactic acid
 d. aerobic
 e. folic acid

Question 2

Postmenopausal women are more susceptible to osteoporosis due to ____.
 a. loss of calcium
 b. lack of protein
 c. loss of estrogen
 d. lack of polysaccharides
  e. loss of balance

[juicepod]

Answer to Question 1

c

Answer to Question 2

c

[Jipu 123]

Thanks for the timely response, appreciate it

[komodo7]

Gracias!