What is the name of the sedimentary rock that forms from remains of plants? 1). Rock Salt

2). Sandstone

3.) Charcoal

(help please)

Pepsin is an enzyme in the stomach that breaks polypeptides into amino acids. pepsin functions best at a ph of around 1.5. what would be the most likely result if the ph of the stomach were increased to 5

What pattern of migration do whales follow?

Which macromolecule catalyzes chemical reactions this be considered enzyme chemical reactions thus he considering enzymes