Tge system that coirdinate and send message to the body is the nervous system
Answer:
1. Life, exist 2. pre-existing cells.
Explanation:
HIV in fact kills the immune system cells causing our body cannot fight off infections and diseases from entering our body. this creates our immune system to become weaken.
Endocytosis carry substances into the cells, and exocytosis is what the cell rejects.
Having the haploid number of chromosomes allows the zygote to have the correct number. If gametes weren't haploid, every generation of organisms would have twice as many chromosomes as their parents. I hope my answer has come to your help. God bless and have a nice day ahead!