Question

Choose the correct statement(s) from the following:

• A. Rooted vegetation is found in Littoral zone.
• B. Open water with floating planktons are found in Limnetic zone.
• C. Deep water containing crabs is found in profundal zone.
• D. Stratification is found in only aquatic ecosystems.

Answer 1

Answer: (A), (B), (C)

The correct options are
A Rooted vegetation is found in Littoral zone.
B Open water with floating planktons are found in Limnetic zone.
C Deep water containing crabs is found in profundal zone.

Depending upon physical and physiological requirement of diverse species in a biological community, they spatially organise themselves in a recognizable structure or pattern called as stratification.

Stratification is found in both terrestrial and aquatic ecosystem. In aquatic ecosystems like lake and large ponds, there are only two or three stratas or zones :
a littoral zone containing rooted vegetation, a limnetic zone of open water containing floating plankton, and a deep water profundal zone.