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Unit 1 Lesson 2 ( let's us know more )


Let’s us know more!
Hi, boys and girls, we know that plants will compete for sunlight, water, nutrient and space. Then, do you know that how about the plants in the desert?
In desert ecosystems, where water is scarce, the cactus plants do not grow very close together. Their roots, however, radiate out from the cactus plant, just under the surface of the soil. The roots of a cactus need to absorb as much water as possible when it rains. In this ecosystem it is the roots of the cactus plants which compete for space below the ground.
Let’s surf

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