The spruce-fraser fir forest at the top of Mt. Mitchell is nearly all dead, and the cloud formations surrounding the forest have a pH of 2.5-3.5. What is the most likely cause of this destruction

the solute can move "downhill," from regions of higher to lower concentration, relying on the specificity of the protein carrier to pass through the membrane. this process is called passive transport or facilitated diffusion, and does not require energy.

genetic variation will increase because of a new habitat and food source.

explanation:

while the heads of the phospholipid structure attract water, the tails are hydrophobic. the model shows how the hydrophilic section folds around the fluid molecules to bring them into the cell so they don’t need to pass through the hydrophobic tails.