Answer:
I don't know
Explanation:
I am not sure that they can or would be called heroes. They found new plants, met native Americans, and charted unknown areas of the new lands, but they were not well known in their time.
Answer:
Myelin
Explanation:
Myelin is a fatty substance that surrounds nerve cell axons to insulate them and increase the rate at which information is passed along. The myelin can be compared to the protective coating of an electrical wire.
Answer: According to the law of demand, price and quantity move along a track in the same direction.
Explanation:
Hope this helped!