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GCSE
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More cards in this set
Card 16
Front
Spiracles are pores on the....
Back
Card 17
Front
How do single celled organisms exchange gases?
Back
Card 18
Front
Why do single celled organisms not require a specialized gas exchange system?
Back
Card 19
Front
How do insects control water loss?
Back
Card 20
Front
Guard cells become turgid when...
Back
Card 21
Front
Guard cells become flaccid when...
Back
Card 22
Front
When do guard cells open the stomatal pore?
Back
See full card set