Answer:
1. Asexual reproduction occurs when an organism makes more of itself without exchanging genetic information with another organism through sex.
2. Regeneration is the process of partial or complete regrowth of tissues in an organism where there has been damage, while the fragmentation is a form of asexual reproduction when an organism breaks into multiple fragments or smaller part of itself.
3. Vegetative propagation is an asexual method of plant reproduction that occurs in its leaves, roots and stem. This can occur through fragmentation and regeneration of specific vegetative parts of plants.
4. Propagating by stem cuttings is probably the most common and easiest route. Many cacti can be propagated successfully by stem cuttings. Stem cuttings are taken from an existing plant, then allowed to dry and callous. The cuttings will eventually start rooting from the cut end and start growing as a new plant
