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skyleton skyleton
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Posts: 463
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6 years ago
Contraction and relaxation of smooth muscle in the wall(s) of ____ can alter its diameter and air flow.
 
  a. alveoli
  b. bronchioles
  c. bronchi
  d. trachea
  e. larynx

Question 2

The most diverse animal group is the:
 
  a. mollusks
  b. arthropods
  c. nematodes
  d. chordates
  e. cnidarians
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Replies
wrote...
6 years ago
Answer to q. 1

b

Answer to q. 2

b
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