How do interferons protect the body against viruses?

What is one way in which a discovery that is made by using cell technology could change existing scientific knowledge? a. a discovery could lead to a change in experimental methods. b. a discovery could lead to a replacement of a scientific theory. c. a discovery could lead to a new brand of cell culture medium. d. a discovery could lead to a new material for culture flasks.

In which case would a scientist choose to use a dissecting microscope rather than a compound microscope

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.