The Bering Strait separates Siberia and Alaska.
Answer:
the word 'structure' in biology has the following meaning;
"<em>An arrangement or organization of parts to form an organ, system, or living thing</em>"
This supports the continental drift idea by example: a fossil animal was in one continent and then you find it in another. This is splitting the continents.
This is active transport so the ions go against the concentration gradient. This means that the ions will travel from the place where there are less sodium ions(from the inside of the cell) to the place where there are more sodium ions (to the outside of the cell).
