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2007-02-24 21:26:31 · 3 answers · asked by farah s 1 in Science & Mathematics Botany

3 answers

Here's a list of some common adaptations seen in desert plants:

1. Enhanced cuticle, a waxy covering, which prevents water loss. 2. Long vertical roots enabling a plant to reach water sources beneath the soil.
3. Shallow, radial roots, those which extend horizontally, which maximize water absorption at the surface.
4. Tricombs, hair-like projections, that create a thick boundary layer which will deflect heat as well as IR wavelengths.
5. Spines and hairs which discourage herbivores and increase boundary layer effects.
6. Increased vacuoles in both size and number which allow for the accumulation of C4 acids.
7. Small and narrow leaves which decreases heating from the sun.
8. Rotating leaves which enable the plant to orient its leaves away from maximum exposure to the sun.
9. Crassulacean Acid Metabolism.
10. Ephemeral life history strategies in which plant activity is limited to periods that are optimal for growth and development, i.e. after a heavy rain.
11. Recessed and reduced stomates which decreases water loss.
12. Succulent leaves which reduce the surface-to-volume ratio and favor water conservation.
13. Leaf polymorphism in which broad leaves are formed when soil moisture is high and narrow leaves follow as that water is used up.
14. Increased surface area which increases the rate of heat dissipation.

2007-02-28 15:55:47 · answer #1 · answered by john h 7 · 0 0

Lot's of different ways,

They limit the number of stomata,
They develop fleshy stems for water storage
They develop waxy cuticles to seal in moisture
They develop extensive root systems
They alter their life cycles to germinate only when water is present

There are probably more, but that's a good start.

2007-02-26 02:07:47 · answer #2 · answered by floundering penguins 5 · 2 0

a million. some plant life have a waxy cuticle (impermeable to water to shrink water loss. 2. In quite warm climate the stomata (pores on the decrease epidermis ) close to to shrink water loss. 3. some plant life have their stomata in 'pits' interior the epidermis to shrink water loss. desire this enables!

2016-11-25 22:04:30 · answer #3 · answered by lacue 4 · 0 0

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