How are kidney and coffee filter alike

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.

Compare the depth of field when focusing with low power and high power. which power has the greater depth of field?

What would happen if the krill were removed from the food web