Aceibitorshope this helps
Answer:
pollution of water. or do you mean pollutant in which case would be like garbage or oil spills
Answer:
Homeostasis
Explanation:
It is what makes to where you are a warm enough temperature that's not to hot and not to cold. It tells all the cells in that one part of your body what to do keep it balanced. If you don't understand this just comment on my answer and say what you need to tell me so I know what to adjust so you can understand it.
Some individuals are more likely to survive and reproduce than others because they are fit and easily adapting. This idea is called 'survival of the fittest'.
