Why do you think that there are so many different ways for the body to fight off infection and invasion by foreign or disease causing particles

How many years would it take the atlantic ocean to grow 500 centimeters? show your work.

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?

Which heredity condition causes a buildup of mucus in lungs and pancreas? a. cystic fibrosis b. heart disease c. huntington's disease d. sickle cell anemia