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The prefix "cardio" refers to

aerobic

heart

with oxygen

anaerobic

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User Pokeb
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2 Answers

13 votes

Step-by-step explanation:

The prefix "cardio" refers to HEART

answered
User GotBatteries
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11 votes

Answer:

Even just looking up the meaning of the prefix "cardo" we can determine that it has to do something with the heart. The word cardio comes from the Greek kardía, which means "heart".

Option B, heart

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User Yttrill
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