Osteoporosis occurs when a. the cushioning between joints ...

[bclement10]

Osteoporosis occurs when
 
  a. the cushioning between joints wears out and the joints become stiff.
  b. maximal heart rates decrease so that any sort of workout requires more effort.
  c. lost minerals result in less bone mass.
  d. vitamin deficiencies lower the efficiency of the major organs.

Question 2

From our twenties on, we lose _____ of our strength per decade.
 
  a. 5
  b. 10
  c. 15
  d. 20

[morrie123456]

Answer to Question 1

c

Answer to Question 2

b

[bclement10]

Great answer, keep it coming

[cdmart10]

Thanks for the timely response, appreciate it