Hello
Your hand went into a shock because of overuse it is a common thing
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<span>vestigial structures because they are hard </span>
C. Two atoms come together to form a molecule.
D) cell wall have vesicles and cell membrane have plasmids...
Remember cell wall is hard n have rigid shape and it protect de internal organs... But a membrane is soft n nor a rigid shape...
Answer:
It would be our brain stem
.
Explanation: