The message moving through a neuron is while the message between neurons is

I believe the answer is Electrical message /chemical message.
Neurones are nerve cells that carry information as tiny electrical signals. They are three types of neurones; Sensory neurones that carry signals from the receptors to the central nervous system, Motor neurone that carry information from the CNS to the effector cells and the relay neurones that carry information from one part of the CNS to another.

You did not show us the image of the burger, but i shall try to answer as best i can.  when purchasing food, always consider the ingredients as well as the person who prepared it. consider if they were hygienic people or not, in case the burger was infected with bacteria. no mortal should place an infected burger into their mouth.   

Iwould put 'think' in the blank