Operation of Neurophysiology and Nerve Impulses Questions

Can you help me understand this Biology question?

 

Follow the direction that I uploaded in a docx (“directions”) to fill out the data worksheet in “nerve impulse lab worksheet” and then when you are done please answer the questions in “Nerve Impulse Review Sheet” Please do not copy from google and make sure you organize your work in a docx please. Please make sure you read the steps and answer the questions carefully.
Make sure you do not copy from any source or use same info from other assignments.

http://www2.scsc.k12.in.us/physioEX/bc_physioex_8/627400.cw/-/t/index.html

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