Cactus roots have adapted by burrowing deep to reach water that is not quickly evaporated by surface heat. The stems grow very thick to act as a sort of insulation against evaporative loss. And the...
The roots grow deeper to gather more water, the stems are woody and the leaves are waxy to prevent water loss by transpiration, cacti have also evolved other mechanisms to prevent water loss by...
The roots to a cactus are long thick and go very wide and deep. When it rains the roots absorb the water and store it in its leaves. The cactus doesnt need a lot of water. A couple drops a year will...