Biodiversity is important to human society because it
a. is a natural resources b. provides food and good c. provides medicines d. all the above

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.

What's the waste product of electrons and pyruvate combining in fermentation?  

Moving down the ramp from 6 meters to