Answer:
One possible cause of persistent sadness could be depression
Explanation:
Answer:
Osmosis occurs until the concentration gradient of water goes to zero or until the hydrostatic pressure of the water balances the osmotic pressure. Osmosis occurs when there is a concentration gradient of a solute within a solution, but the membrane does not allow diffusion of the solute.
Explanation:
Hydrogen, Carbon, Nitrogen, and Oxygen all make up amino acids.
