• Protists have a nucleus containing their DNA.
  • They also have other membrane-bound organelles, such as mitochondria and the endoplasmic reticulum.
  • Most protists are single-celled, but some are multicellular.
  • They are found in damp soil, marshes, puddles, lakes, and the ocean.
  • Some are free-living organisms, others are involved in symbiotic relationships.
  • Protists get food through ingestion, absorption, or photosynthesis.
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