Level Two Questions:
16. How does the diaphragm help to bring air into the lungs?

we know that diaphragm is a dome shaped structure that is present under the lungs. The diaphragm pushes the lungs to drawing air into the lungs. when it relaxes it leaves the air.

the answers are as following:

1. c. double helix, nucleosome, coil, supercoil, chromosome

2. b. g2 phase, preparation for mitosis

3. d. interphase consists of the g1, s, and g2 phases

4. c. metaphase

5. a. chromosomes are duplicated before cell division so that each new daughter cell has a complete set