Functions of sepals: Sepals protect the inner parts of flower when it is a bud. Function of petals: Petals attract the insects which are the agencies of pollination by colour and fragrance.
What do you mean by a complete and an incomplete flower?
Answer
The flower with all whorls, i.e., sepals, petals, stamen and carpel in it is a complete flower.
If any one of these is absent in a flower, it is called an incomplete flower.
After fertilization, the ovary of the flower gets stimulated by the action of seed and forms the fruits, like mango, orange, etc. Embryo surrounded by a hard wall is called the seed.
Activity.Put a leaf under a white sheet of paper or a sheet in your notebook. Hold it in place as shown in the figure. Hold your pencil tip sideways and rub it on the portion of the paper having the leaf below it. Did you get an impression wuth some lines in it? Are they similar to those on the leaf?
Answer
Yes, an impression with some lines in it is on the leaf. obtained. They are similar to those.