Answer:
Mutation
Explanation:
If an error occurs during the replication, it is called a mutation. Mutations can benefit, have no effect on, or damage the organism. Mutations are permanent once they occur.
To try and help although thee aren't any answers i would say... if they were to literally conduct a field study such as this, much pollution would occur, Millions of fish would die as of plants also. And would over-all Lake Michigan would never be the same again.
Answer:
voluntary muscle movements
The autonomic nervous system is further divided into sympathetic and parasympathetic nervous systems
