What Is the Correct Sequence in Which a Drop of Blood

question 39

Multiple Choice

What is the correct sequence in which a drop of blood returning from the body encounters the heart chambers?

• A) left atrium → left ventricle → right atrium → right ventricle
• B) left ventricle → left atrium → right ventricle → right atrium
• C) right atrium → left atrium → left ventricle → right ventricle
• D) right atrium → left ventricle → left atrium → right ventricle
• E) right atrium → right ventricle → left atrium → left ventricle

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The increase in total revenue resulting from employing one more unit of a resource, holding all other factors constant.