Answer:
This is relatively easy for me to answer from my own knowledge: Invasive species disturb environments by increasing competition and destroying the peace in the ecosystem.
Copied answer
The invasive species are the species who are present in a non native ecosystem. The invasion of These species disturbs the environment of particular system by increasing the competition or destroying the vital component of the ecosystem.
(yes I did copy some words from online sources, but if you want to make your answer seem like it wasn't copy paste, I suggest you use my answer)