NEET BIOLOGY

Detailed explanation-1: -The profundal zone is a deep zone of an inland body of freestanding water, such as a lake or pond, located below the range of effective light penetration. This is typically below the thermocline, the vertical zone in the water through which temperature drops rapidly.

Detailed explanation-2: -The Benthic Zone is the bottom of the pond or lake and consists of organic sediments and soil. As the body of water ages, this zone will increase. It is considered the pond or lake’s digestive system. This zone is where bacteria decompose organic matter from dead algae, aquatic plants, and fish and animal waste.

Detailed explanation-3: -The profundal zone is chiefly inhabited by primary consumers that are either attached to or crawl along the sediments at the bottom of the lake. Such bottom-dwelling animals are called the benthos. The sediments underlying the profundal zone also support a large population of bacteria and fungi.

Detailed explanation-4: -Limnology divides lakes into three three distinct zones (limnetic, littoral and the benthic zone; Fig.). 1. The littoral zone is the near shore area where sunlight penetrates all the way to the sediment and allows aquatic plants (macrophytes) to grow.

Detailed explanation-5: -We can say that the deep zone of an inland body of freestanding water, such as a lake or pond is called the profundal zone.