Insects limit water loss through their small SA:vol ratio, closing spiracles at rest, and a waterproof cuticle over their chitin exoskeleton.
Gli insetti limitano la perdita d'acqua grazie al loro rapporto SA:vol ridotto, alla chiusura degli spiracoli a riposo e a una cuticola impermeabile sull'esoscheletro di chitina.
| Front | How do insects limit water loss? (3) |
|---|---|
| Back | - small SA:vol ratio - smaller area for evaporation - reduces water loss by evaporation - spiracles close at rest - water cannot diffuse out - reduces water loss by evaporation - waterproof cuticle over chitin exoskeleton - longer diffusion pathway - reduces water loss by evaporation |
Tags: gas_exchange
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