Which of the following does not contain a coinage metal?
a. silver and gold
b. zinc and gold
c. copper and silver
d. copper and gold

Which osmotic and ionic strategies must marine teleost fishes employ?

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.

Which part of the cell is affected by the movement of molecules through diffusion, osmosis and active transport?