Answer:
A nerve impulse
Explanation:
It's important to note that these signals not only connect the brain and spinal cord, but they also send signals to muscles and glands. People talk about nerve impulses when they talk about the electrical signal that goes down an axon.
Answer:
both options 4 and 3 is the answer..
They will not mix because the oil does not have a chemical charge large enough to break the hydrogen bonds between the water molecules.
C is not an example of evolution so that is your answer
