Question

limnetic, profundal, littoral, and benthic have what in common? a. they refer to the upper - level zones found in salt - and freshwater ecosystems. b. they are all zones found in freshwater systems. c. they refer to the lower - level zones found in salt - and freshwater ecosystems. d. they are all zones found in saltwater systems. please select the best answer from the choices provided

Explanation:

Limnetic, profundal, littoral, and benthic are zones in freshwater systems. The littoral is near - shore, limnetic is the open - water surface, profundal is deep water below the limnetic, and benthic is the bottom zone. They are not upper - level or lower - level zones in salt and freshwater, and not in saltwater systems only.

Answer:

B. They are all zones found in freshwater systems.