Answer
The barrel shape without leaves helps the cactus to conserve water as the absence of leaves reduces surface area through which water can evaporate. Moreover, this also helps the cactus to avoid being eaten by the animals.
Work Step by Step
The barrel shape without leaves helps the cactus to conserve water as the absence of leaves reduces surface area through which water can evaporate. Moreover, this also helps the cactus to avoid being eaten by the animals.
