Easy biology question in passive transport, if the concentration of molecules outside the cell increases, this will cause more of the molecules to a. enter the cell because they are moving against the concentration gradient b. enter the cell because they are moving with the concentration gradient c. exit the cell because they are moving from high to low concentration d. exit the cell because they are moving from low to high concentration

Astudent sees several ants walking up a wall following the exact same trail that an ant took earlier. she wants to apply the scientific method to determine how the ants detected the trail. which of these steps would come first in her application of the scientific method? perform an experiment by cleaning the scent away from part of the trail. draw a conclusion that the ants follow a scent trail. make a prediction about what the ants will do after she cleans away part of the trail. hypothesize that the ants are following a scent trail that the first ant left.