The loop of Henle conserves water and minimizes the volume of urine.
Cells are the most simple level of organization, as tissues contain cells, organs contain tissues and systems contain organs, so R would be your answer.
<span>The property of this drug that would make it ideal is if it had something to void out the nausea and headache. Even though they aren't considered serious side effects, they can develop into a chronic problem if allowed.</span>
The structures that are in the body are In a complex environment, animals learn from their responses to stimuli and events. Appropriate response to reward and punishment can promote survival, reproduction and increase evolutionary fitness.
