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Home Q & A Board Biology-Related Homework Help General Biology
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claudiawong05 claudiawong05
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6 years ago
The group of animals with an efficient respiratory system, in that there is no stale air after exhalation, is the:
 
  a. amphibians
  b. birds
  c. mammals
  d. reptiles
  e. fish

Question 2

The mollusks with the largest brain and most complex behavior are the:
 
  a. chitins
  b. cephalopods
  c. gastropods
  d. bivalves
  e. chelicerates
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kzabeckzabec
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6 years ago
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claudiawong05 Author
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#2
6 years ago
Thank you, thank you, thank you!
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