The human mouth has a plethora of bacteria species. why is there so much variety of bacteria in the mouth?

Which conditions need to be in balance for cells to function? check all that apply. blood sugar food intake body water body temperature body mass

Hey me with this one❤☺❤ how do you say that a cell also has a life span and death like an organism? give one example.

Recombinant dna (rdna) creates offspring which are genetically identical to the parent is the process of breeding only organisms with desirable traits involves the removal of the nucleus of a cell combines genes from organisms of different species in a lab