In contrast to predation, a parasite usually

In contrast to predation, a parasite usually
 
  a. does not kill the animal on which, or in
  which, it lives.
  b. kills its host.
  c. is a short-term visitor.
  d. is larger than its host.
  e. does not kill the animal on which, or in
  which, it lives and is larger than its host

Question 2

Which of the following is true of predation?
 
  a. A predator exerts selective pressure on its
  prey.
  b. A prey exerts selective pressure on its
  predator.
  c. In a typical predation case, the predator
  would not kill its prey.
  d. Feeding on carcasses is also an example of
  predation.
  e. Predator and prey exert selective pressure
  on one another.