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More cards in this set
Card 6
Front
The trachea divide into smaller tubes called tracheoles - what do they do?
Back
Card 7
Front
There are two ways that respiratory gases move in and out of tracheal systems. What are they?
Back
Card 8
Front
What is the function of the spiracles?
Back
Card 9
Front
Why are valves necessary in the control of an insect's gas exchange?
Back
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