The answer is Pioneer plants are those that first colonize a particular place being the first settlers of a plant community.
Explanation:
The pioneer plants are the plants that first colonize a particular place, or that the human being has introduced into a physical place, being one of the first settlers of a plant community. Pioneer plants are more resistant to environmental changes since they need to be resistant and fast growing in order to survive in the frequently unfavorable conditions found in recently altered areas.