What is the advantage of following characteristics of the cactus plant?
i.leaves are modified into thorns.Give reasons
ii.Stem is green and fleshly.
iii.Roots goes deep under the ground and have many root hairs.
Answers
Answer:
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Answer:
1) The leaves of cactus are modified into spines, to prevent water loss from the surface of leaves. The green stem of the cactus plant contains chlorophyll. Thus, the stem is the centre of photosynthesis in the cactus plants instead of the leaves.
2) Cacti have a thick, hard-walled, succulent stem – when it rains, water is stored in the stem. The stems are photosynthetic, green, and fleshy. ... A thick, waxy coating keeps the water inside the cactus from evaporating. Many cacti have very long, fibrous roots, which absorb moisture from the soil.
3) Cactus roots help to gather and preserve water in several ways. ... In brief showers which only wet a few inches of soil, the shallow roots help the plant maximize water intake from a large area. Cactus roots also change characteristics as the water supply fluctuates.
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