Which reproduction uses non reproductive plants of a plant to produce new plants​

Vegetative propagation

Explanation:

Vegetative propagation does not require seeds or spores. Instead, offspring grow from a part of the parent plant.

the answer is; comparing the frequency of collisions with and without the device

this makes the anti-collision system an independent variable and the collisions a dependent variable. if there are fewer collisions with an anti-collision system that without, then it can be stated that the system is a success. essentially, collisions under an anti-collision system are compared with the frequency of collisions by cars with the human drivers.