NEED HELP ASAP! (90 POINTS) If you spam or write any thing that isnt nessacary I will report you and get my points back here are the questions.

2.Signals from and the body's are received by the brain and the spinal cord.

3. Once signals are processed and by the central nervous system, a response is sent back to the body.
A central nervous system is also responsible for programming and .

4. What animal did scientists study to create the brain–machine interface?

5.What does the exoskeleton use to power its movements?

6.What is the importance of this research?

One way in which the useful metal copper is produced is by dissolving the mineral azurite, which contains copper(ii) carbonate, in concentrated sulfuric acid. the sulfuric acid reacts with the copper(ii) carbonate to produce a blue solution of copper(ii) sulfate. scrap iron is then added to this solution, and pure copper metal precipitates out because of the following chemical reaction: (s) (aq) (s) (aq) suppose an industrial quality-control chemist analyzes a sample from a copper processing plant in the following way. he adds powdered iron to a copper(ii) sulfate sample from the plant until no more copper will precipitate. he then washes, dries, and weighs the precipitate, and finds that it has a mass of .