The cut part of plant stem (having roots and fixed to ground) which is used in the process of grafting is known as:

Binary fission describes the type of reproduction where the organism divides to form:

The cut part of a plant stem (without roots) which is used in grafting is called :

Multiple fission occurs in one of the following. This is :

An organism having a whip-like structure at one end which reproduces by the process of binary fission is: