How would i use prokaryotic cell in a sentence?

Which number represents a basic ph, 4 or 9? numerical answers expected! answer for blank 1: i'll give

Which of the following types of pollution is most responsible for large numbers of deaths worldwide because of unsafe drinking water? (a) nutrient pollution (b) thermal pollution (c) pathogen pollution (d) sediment pollution

What could happen if two base pairs on a strand of dna or switched