1a. the daytime worm will die.
   b.the are more then one kind of worms.
     some kind have better chance of living.
     thay stay alive longer.
     the population will get bigger or fade away.
2a. the poler bear with the thick coat.
  b.the thick coat bear stay warm and not freeze to death.
     some stay warm and that help them live through the cold.
     there were two bears born one die and it leaves that with only one left.
3a. the slow one die and the fast one get away.
  b. the fast one stays alive.
      the faster one get away alot faster.
     there are so many egg layed and thay get eaten.
     the one that run faster live longer.
4a.