What is the primary purpose of vitamin D in humans? a. to ...

[roselinechinyere27m]

What is the primary purpose of vitamin D in humans?
 
  a. to develop acute eyesight
 b. to maintain the balance of calcium in the body
 c. to prevent the development of respiratory illnesses
  d. to enhance the production of collagen for hair

Question 2

The Aymara Indians, who live in the mountains of Bolivia, have become biologically adapted to their environment by being:
 
  a. short legged and barrel chested and surviving on lower oxygen content.
  b. long legged and extremely thin in comparison to the rest of the nation.
  c. short legged and very narrow chested and surviving on higher oxygen content.
  d. excellent climbers with an extraordinary sense of balance.
  e. long legged and stocky chested because of enlarged heart and lungs.

[sultansheikh]

Answer to Question 1

b

Answer to Question 2

a

[roselinechinyere27m]

TY

[sultansheikh]

You're welcome