Answer:
It is a cycle because oxaloacetic acid is the exact molecule needed to accept an acetyl-CoA molecule and start another turn of the cycle.
Both cycle occur within the atmosphere but the difference that they have is at the rate with which they occur. Phosphorus cycle is one of the slowest form of matter cycles that occur on earth as compared to the carbon cycle.
The order is:
interphase
prophase
metaphase
anaphase
telophase
(the way i remember it is "IPMAT")
Stress can cause a virus to switch from the lysogenic cycle to the lytic cycle.