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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*?

  1. Because all four possess autotrophic photosynthetic nutrition.
  2. Because all four are prokaryotic single-celled organisms.
  3. Because Kingdom Protista brought together all unicellular eukaryotic organisms.
  4. Because all four reproduce exclusively via sexual conjugation.

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.
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