Science

common pathways for food and air are the (1), which connects to the mouth, and (2), which connects to the larynx. Epithelium in this region is (3), which provideds good protection from friction. Three bands of skeletal muscle, the (4) propel food into the (5). Entrance to the stomach is guarded by the (6).

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asked by Lana
  1. What animal is this?

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    posted by --
  2. Human

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    posted by Lana
  3. Oh..
    1. Pharynx
    2. Trachea
    3. Central Nervous System
    4. -
    5. -
    6. Cardiac Sphincter

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