NTA Abhyas NEET2020BotanyMorphology of Flowering PlantsPractice
In Bougainvillea and Citrus thorns are the modification of ......(i)...... and in cactus spines are a modification of .....(ii)......
Options
- A(i) (ii) Adventitious root Stem
- B(i) (ii) Stem Leaf
- C(i) (ii) Leaf Stem
- D(i) (ii) Stipules Flower
Correct answer
B. (i) (ii) Stem Leaf
Step-by-step solution
In Bougainvillea and citrus thorns is stem modification in which axillary bud of the stem is modified to form a protective structure called as a thorn. In cactus, leaves are modified to form spines to reduce the transpiration.