Because these non native species can cause competition for the same food source as the native species thus making it harder for the native species to survive. Also the non native species could see the native species as food causing them to die out. As well as introducing new diseases that these native species don’t know how to defend themselves from
I don’t understand the question! context?
Evolution. Like how we evolved from apes.
Answer: The respiratory system, the circulatory system, and the muscular system
Hope this helps :)
