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Savanna plants regrow quickly after a fire sweeps through. Which adaptation makes that possible?
AWell developed root systems
BThick waxy leaf cuticles
CWind dispersed light seeds
DVery deep taproots for water
Answer & Solution
Correct answer: A. Well developed root systems
1. Savannas have a long dry season and fire is a regular disturbance there.
2. Fire destroys the parts of a plant that stand above the ground.
3. Plants with well developed root systems keep living tissue safely below the surface.
4. From those roots they can re-sprout quickly once the fire has passed.
5. A waxy cuticle slows water loss but gives no protection against burning.
_Source: OpenStax Biology 1e (CC BY 4.0), Chs 44 and 46, section 44.3 Terrestrial Biomes_
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