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Sort the breathing ideas

Exercise and reference answers

Items
  1. Group
    Skin
    Item
    Flatworm
  2. Group
    Skin
    Item
    Under 1 mm
  3. Group
    Skin
    Item
    Moist cells
  4. Group
    Gills
    Item
    Fish
  5. Group
    Gills
    Item
    Filaments
  6. Group
    Gills
    Item
    Molluscs
  7. Group
    Lungs
    Item
    Alveoli
  8. Group
    Lungs
    Item
    Trachea
  9. Group
    Lungs
    Item
    Diaphragm
Groups
  1. Item
    Skin
  2. Item
    Gills
  3. Item
    Lungs
Instructions
Drop each item onto skin, gills or lungs.

Explanation

_Source: OpenStax Biology 2e, Chapter 39, The Respiratory System._
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