Sophie is pushing her bicycle up a hill with a force of 10N. If she increases her force to 12 N she will . increase the distance the bicycle must move
increase the bicycle's acceleration
decrease the bicycle's mass
decrease the amount of work being done

only about ten percent of the energy at one trophic level is passed on to organisms at the next trophic level. the remainder of the energy is used in life processes or lost as heat.

the answer is 100% density i've answered this question before and done the quiz myself.