Answer:The brainstem has an ectodermal origin and is composed of 4 parts: the diencephalon, mesencephalon, pons, and medulla oblongata.
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yes, even though they are still intact they can sill build up bacteria/germs.
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Hope this helps!
A is the answer to the question
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im sorry i just saw that you were on here six seconds so i figured you would be on here can you plz answer my question all i had was 12 points so i can only give 12 points
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