Question 18
Leaves of cactus get modified into-
- Spines
- Thorns
- Tendrils
- Spines and tendrils.
Answer
spines.
Explanation:
The leaves of cactus get modified into spines. This is an adaptation to reduce water loss from the plant. Since the cactus grows in dry and arid regions, it needs to conserve water to survive. The spines also act as a deterrent to prevent animals from eating the plant.