How do cacti adapt to the arid environment of the desert?

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1. The result of evolution

2. Own advantages

Cactus can still survive in a desert environment that is extremely short of water. A large part of the reason is that its structure can lock in water very well. Furthermore, its root system is very developed. When it is short of water, it will Extend downward until you find a water source. Of course, if the environment is very harsh, the plant will wither and die.

1. The results of evolution

1. We all know that plants lack water because there are stomata on the surface of leaves, which take away a lot of water during transpiration, and cactus plants The leaves of the plant have already turned into thorns, so there will be no evaporation of water. At this point, the plant's water can be retained to sustain life activities.

2. Another very important reason is the plant’s The surface layer undergoes strong keratinization, like a layer of wax, and the stomata are sunken. In this way, the water of the plant will be deeply locked in the cells. Sometimes the water stored in the plant can reach its own weight. 95%, which shows that it is still possible to maintain life in the desert.

2. Its own advantages

1. Speaking of its own advantages, it refers to the roots of the plant, which have a strong ability to absorb water, even from the air. The moisture in it can also be collected for your own use to a certain extent.

2. If the plant is short of water and the depth of the root system There is no more water to absorb, and it will continue to extend until it finds a water source again, so the plant can grow in such a harsh environment.

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