Answer:
A. The nervous system collects and responds to information about
the internal and external environment.
Explanation:
There are so many examples for that in different areas, like TPT1 experiment carried out in our lab recently.Here's one link: http://www.alfa-chemistry.com/tpt1-cas-167218-46-4-item-290583.htm
Answer :
B.) they orbit the sun
The air that we breathe in is an example of solid solution
