Write briefly about natural vegetative propagation

Write briefly about natural vegetative propagation.
**A .**1) In natural vegetative propagation new plants are produced from stem, root, leaves of old plants without the help of any reproductive organs.
2) In bryophyllum small plants grow at the edge of leaves.
3) Aerial weak stems like runners stolons, when they touch the ground give it
adventitious roots. .
4) When the connection with the parent plant is broken the stem portion with the adventitious roots develops into an independent plant.