Parasitism is when
one organism benefits from another without it being affected
both organisms benefit from a relationship
one organism feeds off another, making it weak or killing it
both organisms are hurt from a relationship

How have high taxes on tobacco products impacted the number of people who use them? a. the number of tobacco users has increased. b. the number of tobacco users has decreased. c. the number of tobacco users has not changed. d. the number of adolescent tobacco users decreased, while the number of adult users increased