Help with a question. MCAT prep

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MCATKILA

Full Member
7+ Year Member
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Please guys i need help. why is option D wrong? I get why option B is correct, based on the explanation given but i thought D was true for all liquids too.
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Imagine blood going through the heart. Even though the entire system is a continuous liquid volume, is blood pressure equal throughout? I think that's what they're getting at.
 
Also think about depth. Fluid pressure increases with depth despite the entire system being part of the same liquid.