Question

Write one main function of leaf spines.

Answer 1

Leaf spines:

1. Leaf spines are adaptations of xerophytic plants like cactus and mexican poppy.
2. The leaves of these plants get converted into spines.
3. The conversion into spines reduces the surface area.

Function:

1. It reduces the loss of water by transpiration.
2. The lesser the surface area, the lesser will be the rate of transpiration.
3. Leaf spines also protect the plant from grazing animals.