Valves ensure blood flows toward your heart. Vein valves work to bring the blood that flowed down via arteries back up to your heart.
Answer:
Deplasmolysis swelling of the cytoplasm of a plasmolyzed cell : reversal of plasmolysis.
Explanation:
the large intestine primarily
Since it has 4 protons, it must have an atomic number of 4. (That makes it beryllium.)
Since it has a 4 protons and 5 neutrons, it has a mass number of 9.
Is C.... I hope this helps