Because u might have made a mistake on the first investigation so u want to repeat it a few more times
Neurons and neurotransmitters didn’t see first answer please make Brainlyist have a good day
Answer:HIV attacks a specific type of immune system cell in the body. It's known as the CD4 helper cell or T cell. When HIV destroys this cell, it becomes harder for the body to fight off other infections. When HIV is left untreated, even a minor infection such as a cold can be much more severe.
Explanation:
Green house gases gives out. Carbon dioxide more than oxygen.... nitrogen stays the same as greenhouses gas does take in or give out