Why do women have periods? TedTalk Video Check 1. Each time ovulation does not result in a healthy pregnancy, what happens inside the uterus? Be descriptive.

16. Monroe uses a microscope to observe specimens in science class. The microscope enlarges objects to 100 times their actual size. Find the size of each specimen as seen in the microscope.

7. Name the two types of gametes. \( \quad \square \quad \) and

In animal cells, the assembly of spindle microtubules starts at the centrosome. What is another name for the centrosome?

What is an example of an autosomal dominant disorder?

10. Think carefully, now. How many DNA molecules are in each of your somatic cells?