<span>The consumption of alcohol can damage one's a student's intellectual capacity and their ability to learn. Studies have shown that high school students who drink alcohol are more likely to respond with lower grades and by dropping out. Similarly, college students who consume alcohol generally earn lower grades than those who abstain from it all together.</span>
Answer: The heart consists of four chambers, two atria (upper chambers) and two ventricles (lower chambers). There is a valve through which blood passes before leaving each chamber of the heart. The valves prevent the backward flow of blood.
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