The ability of a cell to divide into several cells during reproduction in $Plasmodium$ is called:

Which of the following statements are true for flowers?
$(i)$ Flowers are always bisexual
$(ii)$ They are the sexual reproductive organs
$(iii)$ They are produced in all groups of plants
$(iv)$ After fertilisation they give rise to fruits

Give the respective scientific terms used for studying:
$(i)$ The mechanism by which variations are created and inherited,and
$(ii)$ The development of new types of organisms from existing ones.

$(a)$ Name the human male reproductive organ that produces sperms and also secretes a hormone. Write the functions of the secreted hormone.
$(b)$ Name the parts of the human female reproductive system where:
$(i)$ fertilisation takes place.
$(ii)$ implantation of the fertilised egg occurs. Explain how the embryo gets nourishment inside the mother's body?

In which plant does vegetative propagation occur through the stem?

Define reproduction. How does it help in providing stability to the population of species?