Final answer:
The plant reproduced through vegetative propagation, where a new plant grows from a vegetative plant part without seeds or spores.
Step-by-step explanation:
When Damian grew a plant from a leaf cutting, the plant reproduced through vegetative propagation. This method of reproduction involves the growth of a new plant from a vegetative plant part, such as a leaf or stem, without the involvement of seeds or spores. In the case of a leaf cutting, the leaf forms roots and eventually develops into a new plant.
Learn more about Plant reproduction