Question:
Organisms living in open sea are called
Organisms living in open sea are called
Updated On: Aug 15, 2022
- planktons
- nektons
- pelagic
- benthos
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The Correct Option is A
Solution and Explanation
Planktons are the organisms inhabiting the surface layer of sea or lake, drifting with the current. Members of plankton vary in size from unicellular organism to large jelly fish 1m or more in diameter.
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Biological Classification
The process of grouping living organisms into categories is called biological classification. The most modern 5-kingdom classification was put ahead by an eminent scientist R.H.Whittaker. The five-kingdom classification is based on the criteria like cell structure, mode of nutrition, body form, and reproduction. One of the most important characteristics of this system is that it follows the evolutionary sequence of living organisms. The organisms are classified into distinct taxa or levels like Kingdom, Phylum, Division, Class, Order, Family, Genus, and Species. The 5 kingdoms are as follows:
