Are cellular macromolecules containing hydrogen, oxygen, nitrogen, carbon and phosphorous.

Check all that apply diatoms are marine algae that have a shell made of silica, what are some of the uses of the silica shell after the diatoms die? 1.the shells make up the diatomaceous earth used in filters 2.it can be used as an ingredient in abrasives 3.they are used in food products 4.the shells can be used in some insulating materials

The first amino acid of a new polypeptide chain is

If your blood becomes too concentrated with iona, what will happen to the red blood cells