Epiglottis
The epiglotis is what allows you to swallow food without inhaling it. It acts as a gateway between the digestive and respiratory systems
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It is from adult bone marrow.
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- Hannah ❤
My best explanation is
Some cancer is in blood and tissue and doesn’t form a tumor, such as leukemia. Therefore a usage of “chemotherapy” is needed.
Sorry if this isn’t a good explanation
Answer:
B. Earth's rotation around its axis
Explanation:
