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timofeeve [1]
3 years ago
11

Are vaccines injected into the bloodstream or into tissue?

Biology
1 answer:
Lady bird [3.3K]3 years ago
3 0
Vaccines are injected into the bloodstream :)
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Which structures are fingerlike projections that greatly increase the absorbing surface of cells?.
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Microvilli are the structures of fingerlike projections that greatly increase the absorbing surface of the cells.

<h3>What is Microvilli? </h3>

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Therefore the structure that increases the absorbing surface area is called microvilli.

Read more about Microvilli, here

brainly.com/question/12993303

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