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The first cells were likely heterotrophs, who "fed" on the organic molecules, or chemoautotrophs, who used the energy in inorganic molecules.

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Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.
  • Read
    5.4 First Cells

    5.4 First Cells

    by Jeff Huska //at grade
    Describes the first cells and the evolution of photosynthesis and cellular respiration.
    MEMORY METER
    This indicates how strong in your memory this concept is
  • Read
    First Cells

    First Cells

    by biologyepisd //at grade
    Describes the first cells and the evolution of photosynthesis and cellular respiration.
    MEMORY METER
    This indicates how strong in your memory this concept is
  • Read
    First Cells

    First Cells

    by Erin Schmidt //at grade
    Describes the first cells and the evolution of photosynthesis and cellular respiration.
    MEMORY METER
    This indicates how strong in your memory this concept is
  • Read
    First Cells

    First Cells

    by Jared Lovering //at grade
    Describes the first cells and the evolution of photosynthesis and cellular respiration.
    MEMORY METER
    This indicates how strong in your memory this concept is
  • Real World Application
    Deep Sea Snow

    Deep Sea Snow

    by Andrea Pokrzywinski //at grade
    Covers hydrothermal vents and the chemosynthetic based communities found there.
    MEMORY METER
    This indicates how strong in your memory this concept is
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