When stimulated by sunshine, the human body produces __________ ...

[jazziefee]

When stimulated by sunshine, the human body produces __________ in conjunction with calcium.
 
  Fill in the blank(s) with correct word

Question 2

The mode of distribution called reciprocity refers to the exchange of goods and services:
 
  a. between people in hierarchical relationships
  b. for the purpose of maintaining social relationships and gaining prestige.
  c. to make a profit.
  d. to embarrass the person who gave the least.
  e. of unequal value.

[hollysheppard095]

Answer to Question 1

vitamin D

Answer to Question 2

b

[jazziefee]

Thanks for the timely response, appreciate it

[frankwu0507]

Great answer, keep it coming