Answer:
If the checkpoint mechanisms detect problems with the DNA, the cell cycle is halted, and the cell attempts to either complete DNA replication or repair the damaged DNA. If the damage is irreparable, the cell may undergo apoptosis, or programmed cell death 2.
C membrane with the help of a channel protein
Answer:
sorry man i dont know how to answer this one on brainly
Explanation:
Rabies is from animals and virus is from internet and what not that I believe so