The most characteristic feature of diatoms is ...........

  • A
    Pigments
  • B
    Stored food
  • C
    Cell wall
  • D
    Oxygen-free photosynthesis

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Photosynthetic protists are primarily ...........

According to the five-kingdom classification system,unicellular algae such as dinoflagellates,diatoms,and euglenoids are included in the kingdom ..........

Protozoans are not included in kingdom $Animalia$ because they are

Explain the main features of protozoans and their groups.

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