Placing wilted lettuce in cold water will make it crisp again. Which statement best describes what happens to restore the lettuce to its original condition? * a. water left the lettuce cells by diffusion
b. water entered the cells of the lettuce by osmosis
c. osmosis caused salts to enter the lettuce cells
d. salts in the leaf cause water to the leave the cells

Ras is a g-protein that is activated when a growth factor attaches to egfr. its activation results in the replacement of a gdp molecule with a gtp molecule, thus allowing a signal transduction pathway to be activated. considering the signal pathway illustrated on this page, what is one potential outcome of a mutation in the ras gene that leads to ras protein hyperactivity. be specific.