Hola hola amiga cómo estás cómo te puedo ayudar a mi papá a con la tarea
Your cardio gets arrested and sent off to jail
The second statement best explains the type of blood vessel and the function of these vessels' valves - <span>These are veins, which prevent the backflow of blood because the walls have little muscle to pump blood back to the heart.
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Veins are large blood vessels which carry blood back to the heart. <span>Veins have a system of valves to prevent back-flow.</span>
Early civilizations used plants as medicine.
Answer: Marketing Manager
Explanation: Right on Ed
