Why can´t scientists come up with a single solution to protect all of these areas

Cells destroy body cells infected by a virus or bacteria.

Which of the following will a bacterium produce when a human gene is added to its genome? question 4 options: human carbohydrates a protein made up of both human and bacterial properties the human protein coded for by the human gene human plasmids that can be isolated from the bacterium

20 the compound al(nh3)2 has atoms of nitrogen.