I don't get it it's kinda confusing
Answer:
The organ system
Explanation:
An organ is composed of tissue and performs a specific set of functions for the body. And that’s called the organ system
Muscles and internal organs
An introduced species, alien species, exotic species, adventive species, immigrant species, foreign species, non-indigenous species, or non-native species is a species living outside its native distributional range, but which has arrived there by human activity, directly or indirectly, and either deliberately
