Match the following long-term effect of tobacco use with the correct body system. wrinkles and premature aging.
a. immune system
b. nervous system
c. integumentary system
d. cardiovascular system

What was the social class pyramid during the civil war?

What was the main idea behind the daoist religion? a. everyone's life was guided by moral behavior. b. to live peacefully meant to live a life of suffering. c. family should be put above all else. d. all things should follow the flow of nature.

Which of the following makes someone an entrepreneur? a.) becoming a partner in a major law firm b.) becoming a highly paid dancer c.) earning a lot of money as a computer programmer d.) running a company that hires people to fix computers