1. In order for the body to know what is happening on the outside, there is a that helps gather information and detect changes. 2. The information about the changes is sent to a that processes the information and determines a response.
3. The part of the body that carries out that response is the .

***answers for other peeps***
1. sensor 2. control center 3. effector

micro/nanoscale topography surface exhibits many prominent properties and is extensively employed in biomedical device, microfluidic device and energy device fabrication. additionally, the clinical applications of biomaterials can be largely expanded with of nanostructured surfaces.

the answer to your question is b

the relative standard reduction potential of the half-cell in which reduction occurs; more positive than the other half-cell. reduction is a chemical process in which electrons are added to an atom or an ion; it always occurs accompanied by oxidation of the reducing agent.

condensation. good luck!