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Questions and Answers
What is the approximate size of the human heart?
What is the approximate size of the human heart?
- Size of a large watermelon
- Size of a tennis ball
- Size of a small rock
- Size of a closed fist (correct)
How many chambers does the heart have in humans, mammals, and birds?
How many chambers does the heart have in humans, mammals, and birds?
- Two
- Five
- Three
- Four (correct)
What is the name of the protective sac enclosing the heart?
What is the name of the protective sac enclosing the heart?
- Endocardium
- Myocardium
- Peritoneum
- Pericardium (correct)
Which cells determine the rhythm of the heart's blood pumping?
Which cells determine the rhythm of the heart's blood pumping?
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Which layer makes up the outermost part of the heart wall?
Which layer makes up the outermost part of the heart wall?
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What was the cause of the American Civil War?
What was the cause of the American Civil War?
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Who opposed slavery's expansion into the western territories?
Who opposed slavery's expansion into the western territories?
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How many states initially seceded from the United States to form the Confederacy?
How many states initially seceded from the United States to form the Confederacy?
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Where did most of the intense combat of the American Civil War take place?
Where did most of the intense combat of the American Civil War take place?
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Who led the Confederacy during the American Civil War?
Who led the Confederacy during the American Civil War?
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