Enlarged roots and stems in plants are adaptations for and are often found in plants that must endure winter.

support; evergreen

food storage; evergreen

food storage, deciduous

water storage; deciduous

Water storage; deciduous. Deciduous trees roots are not able to grow after 32° and the minimum root growth temperatures are believed to be between 32°-41°. In harsh cold temperature roots tend to freeze if the soil does not form a sort of ice shell to protect them. The roots enlarge in order to be able to absorb more water before the coming spring.

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as the gila monster consumes the eggs or young of the desert cottontail and gambel's quail, thus its main food supply is only accessible for a restricted time duration every year. however, for this, the gila monsters exhibit three adaptations, which elevate their survival rate in the desert condition.  

first, is that they possess huge bodies, and can consume greater concentrations of food during a small period. secondly, they require to feed infrequently as they can accumulate fat in their tails. ultimately, their rate of metabolism is very low, so that they can burn their reservoirs of fat gradually.