How plants are adapted to live in desert. Explain
Answers
Answer:
To survive, desert plants have adapted to the extremes of heat and aridity by using both physical and behavioral mechanisms, much like desert animals. Plants that have adapted by altering their physical structure are called xerophytes. Xerophytes, such as cacti, usually have special means of storing and conserving water. They often have few or no leaves, which reduces transpiration.
Phreatophytes are plants that have adapted to arid environments by growing extremely long roots, allowing them to acquire moisture at or near the water table.
Other desert plants, using behavioral adaptations, have developed a lifestyle in conformance with the seasons of greatest moisture and/or coolest temperatures. These type of plants are usually (and inaccurately) referred to as perennials, plants that live for several years, and annuals, plants that live for only a season.
Desert perennials often survive by remaining dormant during dry periods of the year, then springing to life when water becomes available.
Most annual desert plants germinate only after heavy seasonal rain, then complete their reproductive cycle very quickly. They bloom prodigiously for a few weeks in the spring, accounting for most of the annual wildflower explosions of the deserts. Their heat- and drought-resistant seeds remain dormant in the soil until the next year's annual rains.
Plants need to adapt to certain characteristic features to survive in dry and hot regions.
Explanation:
This adaptation process is referred as xerophytic in nature.
Some Adaptations include :
- Small leaves : As they are small leaves their surfaces are too small. During transpiration because of their small surface there is very less water which is lost. This enables them to survive in hot region.
- Waxy skin: The waxy & a thick texture on their surface enables them to lose less water during transpiration.
To learn more:
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