Plasma, water, salt, protein, platelets
Answer:
The Skeletal system helped him move his hand away from the hot object.
Explanation:
The Skeletal system consists of our skeleton or the bones. The other options would be correct if the question asked about the<u> nervous system</u> instead of the skeletal system.
I'm not sure what you mean by this but here is a diagram of a nephron!! Hope this helps?