You didn't really provide any possible answers here. However, it's very easy to say that the responsible actors for impulse transmission across the synapses from one nervous cell to another nervous cell is what we call neurotransmitters. These are special molecules that can have different effects when binding onto the required receptor sites.
The analysis part of a lad report would include more descriptive details about what you found in the experiment.
3rd option. Cumulonimbus
Cumulonimbus clouds are associated with extreme weather such as heavy torrential downpours, hail storms, lightning and even tornadoes.
Hope this helps;)
Hey There! The "SI" unit is 0.001 grams! Hope this helps!