As bees take nectar from a flower, pollen gets transferred from the stamen on to the bee's body. When the bee goes to the next flower some of this pollen is transferred to the stigma, fertilizing the flower. Once a bee starts collecting nectar from a particular type of flower it will keep going to the same type of flower as long as it can, keeping the pollen to the same type of flower.
The Male part of the flower is known as the Stamen. When you press, the top part of the Stamen known as the Anther gives out small pollen grain which take part in reproduction . Thus, this is the job of the male part of the plant.
Pollen
The three main ways pollen is transferred are by wind (anemophily), by insects (entomophily), and by birds or other animals (zoophily). Each method of pollen transfer is adapted to suit the specific characteristics of the plant species involved.
Flowers are the reproductive parts of the plant. Their purpose, is to attract insects and birds - which then transfer pollen from one flower to another. This triggers the reproductive system to produce seeds so that the plant can spread.
Light and small pollen grains are easier to lift by the wind; so even the lightest breath of air will take pollen flying
Most plants need to have pollen transferred from one flower to another. They produce nectar to attract insects such as bees. As the insects take the nectar some of the pollen sticks to their bodies and is transferred to the next flower they visit. It could be seen as a a sort of payment by the plant for services by the insects.
insects are not looking for pollen : ) bees for example are looking for the nectar of a flower and the pollen gets stuck to their bodies, then when they go to another flower the pollen on their bodies sticks to the stomata of the flower (imagine that the pollen is the equivalent to male sperm and the stomata is the equivalent to a female genitals.) The pollen travels down the stomata to the ovum where it fertilises the seeds and they grow until they are ready to germinate : )
The insect visits a flower to collect nectar. The plant's anthers are positioned in such a way the insect must brush up to them in order to do so, so pollen gets stuck to the insect (especially in hairy insects). The insect is still hungry, since no flower offers enough nectar to satisfy any insect, so it flies along to another flower, where the pollen is deposited on a stamen also positioned in such a way the insect touches it when collecting more nectar. Pollen on a stamen works like sperm and egg - the pollen travels down, futher into the flower, and fertilizes it. Later, seeds are formed. Sometimes it is in fruit. Bumblebees often cheat this. They brush the pollen off their bodies and store it on their legs in special pollen 'baskets' so that they can take it home and feed it to their young!
Pollen.
To attracked bug (bee's) to take their pollen.
Pollen must be placed on the stigma of the flower for fertilization to take place. The stigma is the receptive part of the female reproductive organs in a flower where pollen grains land and germinate to begin the process of fertilization.