In contrast, which of the following do you think does NOT have a feedback loop: a) Stimulating the armmuscles to pick an item. b) The secretion of digestive enzymes to break down food and nutrients. c) Adaptingthe size of the ocular pupils to the intensity of the incoming light. d) The volume of secreted urine … Show more… Show more Biology Science Anatomy BIOL 2114 Share QuestionEmailCopy link Comments (0)