Viruses use host cells to -- Choose the correct answer --

How had the study of mitosis affected scientists knowledge of cancer

Describe the primary and secondary immune response in terms of speed and number of antibodies produced?

The following image is of a diatom. it lives in water and gets food from photosynthesis. it is encased in a hard shell made of something similar to glass or sand . a diatom is a(n) because it has a) multi-celled organism; specialized parts. b) vertebrate; a skeleton. c) insect; an exoskeleton. d) single-called organism; only one cell.