DATA As cells pass through the cell cycle, their volume of DNA alternately halves and doubles. Which
statement about DNA correctly explains this pattern?
a DNA replication occurs during all phases of the cell cycle.
b. DNA replication occurs only during the G1 phase of the cell cycle.
C. DNA replication occurs only during the S phase of the cell cycle.
d. DNA replication occurs randomly, and is unrelated to the cell cycle.

After frida stops exercising, she continues to breathe heavily. what is most likely occurring in her body? heavy breathing during exercise has produced an oxygen surplus in her muscles. this oxygen is being transported to her lungs. this is a result of aerobic respiration. heavy breathing during exercise has produced a carbon dioxide surplus in her muscles. lactate is being transported to her liver. this is a result of aerobic respiration. strenuous exercise has caused her body to be in carbon dioxide debt, and she is breathing hard while lactate is transported to the liver. this is a result of anaerobic respiration. strenuous exercise has caused her body to be in oxygen debt, and she is breathing hard while lactate is transported to the liver. this is a result of anaerobic respiration.