AP BIOLOGY

Detailed explanation-1: -Cactus have succulent stems. Stems in cactus are comparatively thicker than other plants, hence it is able to store water in stems – specifically in collapsible water-storage cells. The stems can also expand considerably to store more water.

Detailed explanation-2: -Succulent plants such as cacti, aloes, and agaves, beat the dry heat by storing plenty of water in their roots, stems, or leaves. How? For starters, when it does rain, succulents absorb a lot of water quickly. In the desert, water evaporates rapidly, never sinking deep into the soil.

Detailed explanation-3: -Cacti have a thick, hard-walled, succulent stem – when it rains, water is stored in the stem. The stems are photosynthetic, green, and fleshy. The inside of the stem is either spongy or hollow (depending on the cactus). A thick, waxy coating keeps the water inside the cactus from evaporating.

Detailed explanation-4: -Succulent plants store water in fleshy leaves, stems or roots. All cacti are succulents, as are such non-cactus desert dwellers as agave, aloe, elephant trees, and many euphorbias. Several other adaptations are essential for the water storing habit to be effective.

Detailed explanation-5: -Water Storage of Plants That Live In the Desert Some desert plants store water in their leaves, stems, or roots. Others have thick, waxy skin that helps prevent water loss. Some desert plants have small leaves that help reduce evaporation. Others have deep taproots that help them reach the underground water sources.