Which statement best describes the effect nicotine has on the central nervous system

some think that theories become laws, but theories and laws have separate and distinct roles in the scientific method. a law is a description of an observed phenomenon in the natural world that hold true every time it is tested. it doesn't explain why something is true; it just states that it is true.

a. vertically

explanation:

i tried it and took the test

if im wrong then we have different tests