Over time, a mutation develops that allows many of the San Diego urchins to resist the toxin, a genetic trait which they pass on to their offspring. Which of the following statements is true?
1) The San Diego urchins will become extinct due to the mutation.
2) The San Diego urchins will become immune to all toxins.
3) The San Diego urchins will pass on the resistance trait to their offspring.
4) The San Diego urchins will lose their ability to reproduce.