Dr. Miller and Dr. Uray created an experiment where they duplicated: a. the process by which the early earth's layers formed
b. how the volcanic activity of the early earth was triggered
c. how the early atmosphere changed from CO2 and methane to Oxygen and Nitrogen
d. how amino acids formed in the early oceans

answer; blank(1); cervical; blank(2); lumbosacral;

plants absorb water from the soil by osmosis. root hair cells are adapted for this by having a large surface area to speed up osmosis. the absorbed water is transported through the roots to the rest of the plant where it is used for different purposes: it transports dissolved minerals around the plant.

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.