A. Nonnative species that are superior competitors
The answer to your question is B- introduction of non-native animal species
If your immune system attacks your own body parts, then it's called 'autoimmune disease'.
Autoimmune disease can happen at many times due to many problems the body can have. If one thing goes wrong with your body, it can go to another.
Yes neglect you leave your child. Child abuse is where you hurt the kid
Land in the steam going down then to open water body and out to ocean or directly to ocean from stream.
Become evaporated, then rain down again