Draw the life history of flowering plant in the form of block diagram.

Explanation

(1) Adult plant produces flower :
When the plant matures and is ready to reproduce, it develops flowers. Flowers are special structures involved in sexual reproduction , which includes pollination and fertilisation.

(2) Pollination : The transfer of pollen grains from the anther of a stamen to the stigma of a carpel is called pollination .
(3) Fertilization : (i) After pollen grains falls on thestigma fertilization occurs when the male gamete present in pollen grains joins with the female gametes present in the ovule .
(ii) In the ovary the makle gamete of pollen combines with the nucleus of female gamete or egg ptresent to form zygote.
(4) Formation of fruit and seed : After fertilisation , a combined cell i.e. zygote grows into an embryo within a seed formed by the ovule.
(5) Each seed contains a tiny plant called an embryo which has root , stem and leaf parts ready to grow into a new plant when conditions are favourable .
(6) Another part of the flower (the ovary ) grows to from fruit , which protects the seeds and helps them spread away from the parent plant to continue the cycle .