JSIERT

Cross-pollination is the transfer of pollen grains from the anther of one flower to stimga of another flower of the same species.

There are two types of reproduction:- Asexual reproduction Sexual reproduction

The period of development from the childhood to adult .

It is a cyclic bleeding or a series of changes in the ovary and uterine wall of a non-pregnant female at intervals of 28 days on an average.

A blood rich tissue through which the materials like Oxygen and nutrients pass from the mother to the embryo.

The close attachment of the embryo with the uterus.

The developing zygote is called Embryo.

A fertilised egg resulting from the union of two gametes.

The reproduction in which sex cells are involved.