Answer;
-Exotic species
Step-by-step explanation;
-An exotic species or an introduced species ( or alien species, non-indigenous species, or non-native species) is a species living outside its native distributional range, which has arrived there by human activity, either deliberate or accidental.
-The major distinguishing feature between exotic and invasive species is that exotic species is harmless to the ecosystem whereas invasive species is harmful to the ecosystem.
-For example important introduced pest species which include chestnut blight, Dutch elm disease, etc. and plant species such as honeysuckle, buckthorn, etc.