Who has the better advantage, unicellular or multicellular organisms? explain. i need this right now

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

Hummingbirds drink nectar from flowers, while robins eat plant seeds. what does this reduce?

Where can a dna be found in a prokaryotic cell