What happens when a sodium ion is attracted to a chlorine ion

The influenza virus cause the flu, but not other diseases. why?

The production of cells during mitosis into specialized function is recombination or differentiation

Which of the following statements about archaea and bacteria is true? a. neither is single-celled. b. they both have nuclear membranes. c. neither reproduces by binary fission. d. they both lack a nuclear membrane.