Answer:
cervix
Explanation:
abnormal cells lead to cervical cancer, so doctors do pap smears
Answer:
I think they work together to create tissue
Explanation:
The answer is B, pollution releases because it negatively affects the environment
Answer:
One easy way to measure the "size" of a ball is how far it is from side to side. Your tennis ball example is a good one: a typical tennis ball is about 2.5 inches form side to side.