6.5 Limiting water loss Flashcards
1
Q
Explain 3 mechanisms by which insect limit water loss?
A
Small SA to VOL ratio, minimise the area over what is lost. Waterproof coverings, over body surface. Spiracles can close to reduce water loss.
2
Q
What is a xerophyte?
A
Plants that are adapted to living i areas where water is in short supply.
3
Q
Explain 3 mechanisms by which xerophytes limit water loss?
A
Thick cuticle Rolling up leaves Hairy leaves Stomata in pits or grooves Reduced SA to VOL ratio of leaves
