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5 Cards in this Set

  • Front
  • Back
Why do organisms require oxygen?
At the cellular level, organisms require oxygen as an electron acceptor in cellular respiration to produce ATP
External Respiration
Exchange of resp. gases between environment and resp. organs or organism
Tracheal System
Found in insects and some arthropods

Does not use Circulatory System to transport Resp. gases

Network of respiratory tubules affecting respiratory gas exchange with each cell
Tracheal System Composed of:
Spiracles
-Opening in exoskeleton
Tracheal System
Found in insects and some arthropods

Does not use Circulatory System to transport Resp. gases

Network of respiratory tubules affecting respiratory gas exchange with each cell