What increases the rate of gas exchange?

Exercise and Smoking.

Explanation: Smoking damages the alveoli, decreases surface area available for gas exchange, and leads to heart disease and lung cancer, a disease that results from an overgrowth of lung tissue.

a time line cause it goes from 685 to 978

as in mitosis, dna replication occurs during interphase.   in meiosis, it occurs specifically in s phase of interphase 1.