Absorbed from the air through tiny in the leaves

Which macromolecules are polymers made of nucleotides (a) fatty acids (b) nucleic acids (c) carboxylic acids (d) amino acides

The model illustrates a process by which a substance is taken up by a cell

All cells need water to survive. in order to maintain the necessary amounts, water can flow across the cell membrane from areas of higher concentration to areas of lower concentration. what is this flow of water called? a) active transport b) allocation c) diffusion d) osmosis