Assertion (A): Vallisneria shows a special adaptation for hydrophilous pollination.

Reason (R): Its male flowers get detached from the plant and float freely until they reach and make physical contact with the female flowers at the water surface.

1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R is not the correct explanation of A.
3. A is true but R is false.
4. A is false but R is true.

Fill in the blanks by selecting suitable words: (unisexual, fertilisation, fruit, stamen, anther, bisexual, pollination, seed, ovary)

(a) A flower that bears both the male and the female parts is known as …………… flower.

(b) A flower bearing only male or female parts is known as …………… flower.

(c) Transfer of pollen grains from the anther to the stigma is known as ……………

(d) Fusion of male cell with female cell is called ……………

(e) The ovule develops into a ……………

(f) The ovary of the flower develops into a ……………

Define Vegetative reproduction

Define Pollination