Astudent decides to set up an experiment in which he adds an auxin to one of two beds of growing flowering plants to observe the elongation. two weeks after applying an auxin to that bed, rather than increased elongation, he notes that the plants to which auxin was added are losing their leaves. what is the most likely reason for this lack of elongation? a. auxins cause cell elongation. he was looking at the entire plant and not using a microscope to look at the cells.
b. he must have added too much of the auxin to the experimental plant bed.
c. he did not add enough of the auxin to the experimental plant bed.
d. the auxin he applied does not have the same effect on all plants.