Question

Which of the following zones of a lake is not habitat for snails, slugs and micro-organisms?
A. Littoral
B. Limnetic
C. Benthic
D. Profundal

Answer 1

Hint: They are found in the region that starts at the shore and continues to the bottom of a water body. It is present in the world. This region is hit with just a limited amount of sunlight. Low temperature and high pressure define this zone. In order to conserve the vast flora and fauna certain conditions are not optimum.

Complete answer:
The activities of life under water are often dictated by the availability of water. For plants and for certain marine species in deep water, light is a limiting factor. The presence of light in marine environments defines where producers and consumers reside in the water. On the basis of the existence of deep light lakes are separated into zones.

-The Littoral zone is adjacent to the sea and stretches out to a point where the rate of photosynthesis is equal to the rate of breathing, which is considered the point of light compensation.
-The sea outside the coastal region is the Limnetic Zone. Oxygen from the photosynthetic action of phytoplanktons is obtained from this region.
-The Benthic zone is part of a water body's lower or bottom area which contains the surface of the sediment. In the benthic region of a lake, snails, slugs and microorganisms are present.
-The Profundal zone is the bottom region of the pond where breathing exceeds output.

Hence, the correct answer is option (A, B, and D).

Note: The littoral zone is split into vertical regions. The spray zone, high tide zone, middle tide zone, and low tide zone are the zones that are mostly included. The sub-tide zone, which is still submerged, is below them. The littoral zone in the pond is big then and limnetic. Limnetic and profundal zones are not present in a tiny pond.