50. Which of the following is NOT true of aquatic biomes?A. An estuary is an example an ecotone.B. Oxygen levels are generally high in oceanic pelagic zone.C. Wetlands have a high capacity to filter dissolved nutrients and chemicals.D. A high diversity and biomass of attached marine algae inhabit rocky intertidal zone.E. While headwaters are generally depleted in oxygen, downstream waters are rich in oxygen forstreams and rivers.