Which is structural and functional unit of neural system???​

Chemical energy is a form of energy. a. heat b. kinetic c. potential d. electromagnetic

Explain what it means to view something from a frame of reference. provide an example that illustrates your explanation. (4 points)

Scientists follow specific processes in order to determine valid explanations and conclusions from observations. david observed strange lights in the sky above his home outside of roswell, new mexico. the only explanation that makes sense to him is that there are ufos in the area. what should david do next to verify his explanation?