Class 12th Biology 2017 Set2 Delhi Board Paper Solution

Question 13

Differentiate between an annual and biennial plant. Provide one example of each.

Answer

Differences between annual and biennial plants are as follows:

Annual Plant Biennial Plant
These plant complete their life cycle in one year These are monocarpic plants, flowers and die in the second season so complete their life cycle in two years.
Vegetative growth and reproduction phase occur in one year Show vegetative growth in one season and reproductive phase in second season.
Since these plants require less time so low maintenance required

It takes double time to grow than annual plants so high maintenance requried.

e.g. Wheat, rye, barley e.g. carrot, cabbage, raddish