l Kingdom Protista has been split into as many as 20 Kingdoms
l Most protists are unicellular.
l Most protists are aerobic. Some are photoautotrophs (contain chloroplast), heterotrophs (absorbing organic molecules or ingesting larger food molecules), or mixotrophs (combine photosynthesis and heterotrophic nutrition)
l Can divide protists into three categories: ingestive/protozoa (animal-like), absorptive (fungus like), and photosynthetic/algae (plantlike)
l Most protists are motile, having cilia or flagella at some point. These structures are extensions of the cytoplasm.
Protista
• Alveolata
• Cercozoa
• Amoeba
• Euglenozoa
• Diplomonadida
• Parabasala
• Stramenopila
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