Is an enzyme that prevents telomeres from degrading by adding more repeating dna to the ends.

What are the four basic classes of organic molecules how do they differ structurally and functionally

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?

Compare the shapes of the bones of the human skull with the shapes of the bones of the human leg. how do the shapes differ? why are the shapes important?