Question

Give biological reasons for the following statements:
In some xerophytes leaves are modified into spines.

Answer 1

Xerophytes are plants that has adapted to survive in places like deserts with low water availability. In xerophyte plants, some leaves are modified into spines. This modification helps plant prevent water loss by transpiration by minimizing the surface area. In addition, it defends plants against herbivores animals. Apart from modification into spines, leaves are modified into other different organs as well. For example, tendrils are modified leaves modified which provides support.

Hence, some xerophytes leaves are modified into spines.