Question

According to five kingdom system, the unicellular algae like Dinoflagellates, Diatoms and Euglenoids are included in kingdom

• A. Monera
• B. Protista
• C. Plantae
• D. Animalia

Answer 1

The correct option is B Protista

Dianoflagellates, Diatoms, Eugneloids are eukaryotic organisms and hence, are not placed in Monera that includes all prokaryotic organisms. Eugneloids lack cell wall and thus cannot be placed in kingdom Plantae; its autotropic mode of nutrition excludes it from kingdom Animalia. Dianoflagellates are unicellular, eukaryotic, autotrophic/heterotrophic/parasitic/symbiotic organisms with/without cellulosic cell wall. Kingdom Protista includes unicellular/multicellular eukaryotes that cannot be placed in Kingdom Plantae and Animalia. Thus, they are placed under kingdom Protista. Thus, the correct answer is option B.