During the process of fertilization, which step happens first?
a. the sperm s nucleus enters the egg cell.
b. enzymes break down the protective layer of the egg cell membrane.
c. a sperm attaches to a binding site on the egg cell membrane.
d. the cell membrane of the egg cell changes

7. describe two strategies that parents can use to cope with stress. 8. describe the three types of childcare available to families. 9. what can parents do to be more involved in their children's education at home and at school? 10. which factors should a parent consider when choosing a childcare option?