Describe what happens when you stand on a pin. state whether electrical or chemical messages are involved? is much appreciated !

For the answer to the question above, well, the pin is a stimulus and your skin is the receptor of the pain. Your skin sends an electric impulse which travels in a sensory neuron. The electrical impulse travels over synapses by going through a chemical reaction. It travels to the central nervous system as a motor neuron, then it acts as an effector which your body responds. The response is by quickly lifting up your foot.

Fjd cd so, owxmiw ur ke l s i'd u t k e d to ld di ri do it ld if k jf kr di fl di do di f if of if of if of if o f i f o c i di di wild led emoji doc

It might. it might because if you think about if they discovered if we came from (lets say something funny like aliens) and thy found cells that matched and they would have t do more research about it but would most probably change their theory.