Achemical produced in growing tips of plants is called a(n):
cell
vitamin
protein
auxin
i will upvote. (do not get the answer wrong )

An Auxin is a chemical that is produced in the growing tips of plants. An Auxin is typically a hormone that promotes the cell and stem elongation.

When a virus infects a host cell, it uses the cell's machinery to make copies of its own genetic material in a process called replication. finally, during the process of self-assembly, that protein shell and the copies of the virus's genetic material are assembled into new viruses.