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Angelina_Jolie [31]
3 years ago
9

How many red blood cells does an adult male have, under normal circumstances

Biology
1 answer:
klemol [59]3 years ago
3 0
We estimate around 20-30 trillion
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This is made from weakened virus particles, that cause the body to build up a defense before you get an infection.
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live attenuated vaccine

Explanation:

The correct answer would be a <u>live attenuated vaccine.</u>

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Ulleksa [173]

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