Question

Seeds of Cinchona are dispersed by

• A. Wind because they are very small and light
• B. Wind because they are winged
• C. Water because they possess aerenchyma
• D. Animals as they have barbs

Answer 1

Answer: (B)

Wind because they are winged

For easy dispersal by wind, seeds have to be light so that their buoyancy may enable them to float on air over long distances. Very small, dry and dusty seeds as those of orchids (weighing as little as 0.004 mg in some cases are carried by the wind like pollens. Seeds of Cinchona are also ex­tremely small and at the same time winged.

So the correct answer is 'Wind because they are winged'.