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

Reproduction is essentially a phenomenon that is not for the survival of an individual but for the stability of a species. Justify.

How can pregnancy be prevented surgically?

Which organ is responsible for the production of eggs in females?

Which disease is caused by the bacterium $Treponema$ $pallidum$?

In the process of reproduction as used in $Spirogyra$,the organism splits itself into small pieces.
$(a)$ What is this process of reproduction called?
$(b)$ Will this type of reproduction be asexual or sexual reproduction? Answer with reason.
$(c)$ Is this process same as regeneration? Give reasons.