Would the invasion of a cell by viruses increase, decrease, or have no effect on the osmolarity of a cell?

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.

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

How do living things obtain phosphorus