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Reptile Structure and Function loading

Most reptiles are ectotherms that possess three-chambered hearts and breathe using lungs.

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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.
  • Video
    Reptiles & Amphibians A Documentary

    Reptiles & Amphibians A Documentary

    by CK-12 //basic
    This is an awesome video introduction to reptiles, how they survive, their mating habits, and generally the way they adapted to a cold-blooded system.
    This indicates how strong in your memory this concept is
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