Question

State why stem of the cactus plant is thick and spongy?

Answer 1

Desert plants:

Plants that grow in the desert are called xerophytes; desert plants have certain adaptations that help them to survive in hot conditions.

Adaptation in desert plants:

1. They have long roots to obtain water from deep layers of soil.
2. The stem is spongy and succulent and adapted to store water.
3. Desert plants modify leaves into thorns to reduce water loss from stomata in hot desert conditions.
4. Example: Cactus. Agaves.