The Reznick and Endler guppy study showed that killifish and pike-cichlids raised in natural ...

The Reznick and Endler guppy study showed
  that killifish and pike-cichlids raised in natural
  conditions will
  a. affect the age at first reproduction of the
  guppies that live with them.
  b. prey on guppies.
  c. affect the growth rate of guppies.
  d. affect the evolution of the guppies' life
  history traits.
  e. do all of these

Question 2

The work of Reznick and Endler with guppies
  shows all of the following EXCEPT that
  a. life history traits can be inherited.
  b. life history traits evolve.
  c. life history traits can be altered over a short
  period of time.
  d. predation does not influence the
  modification of life history traits.
  e. life history traits are coded for in DNA.