Immune System. Its like the Army for your body!
Circadian rhythms ....its just behavior that is repeated over 24 hours
Catalase is an enzyme used to accelerates chemical reactions in the human body. The performance of an enzyme depends on the pH levels. Catalase performs best at the optimum pH of 7. However, it weakens or denatures at pH levels above 10 though the range may differ on other species.
I took the test the answer (for sure) is c: programmed cell death. Good Luck!
Answer:
If you're on EDGE 2021, it's NOT D.
I think it's A.