Biology · BIOLOGICAL CLASSIFICATION
हिन्दी*Paramoecium* and *Amoeba* were earlier classified under the animal kingdom because they lack cell walls. Why were they reclassified into Kingdom Protista alongside *Chlamydomonas* and *Chlorella*?
Correct answer · Option 3
Because Kingdom Protista brought together all unicellular eukaryotic organisms.
Explanation
The criteria changed to cell structure and cell number; Protista was created to group all unicellular eukaryotic organisms regardless of cell wall presence.