Question
Biology Question on morphology of flowering plants
The spines in a cactus (Opuntia) are modified form of.......
A
Bud
B
Stipule
C
Stem
D
Leaf
Answer
Leaf
Explanation
Solution
The spines present on Opuntia represent the reduced leaves. The leaf parts become modified into spines in order to protect the plants from grazing animals and excessive transpiration.