Which of the following systems in absorbing oxygen and releasing carbon dioxide? a. respiratory system. c. integumentary system. b. muscular system. d. none of the above.

the oceanic zone is typically defined as the area of the ocean lying beyond the continental shelf, but operationally is often referred to as beginning where the water depths drop to below 100 meters (328 feet), seaward from the coast to the open ocean.

explanation:

looks like the answer is     c     to me!