Biology

Cross pollination is the transfer of pollen grains from anther of a flower to the stigma of another flower.

Self pollination is the transfer of pollen grains from anther of a flower to the stigma of same flower.

When the baby is fully developed, the wall of the uterus contracts to expel the baby out through the vagina. This process is called parturition.

The fusion of male and female gamete is called syngamy.

Pollen is yellowish powder that is made-up of pollen grains that produce the male gametes of flowering plant.

The flower parts are all attached to enlarged section of the stalk called the receptacle.

Production of plants by cell or tissues or organs in synthetic medium is called tissue culture or micropropagation.

Grafting is similiar to cutting except that the cut plant part is attached on the another plant .

Layering is the development of roots on a stem while it is still attached to parent plant.

In this method, a piece of siutable length of stem is taken from the mother plant. The cutting having nodes and internodes is placed in the moist soil.Roots emerge from basal portion and the bud gives to shoot.