C prepcepataion that’s the right answer
Hello!
The brainstem that controls those functions, as well as others is known as the <span>medulla. The Medulla is the lower half of the brain. This stem is connected to the spinal cord, so if damaged will more than likely result in death/brain death,
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SuperHelperThingy</span>
I'm gonna have to go with no
After 10 years, the isotope would have had two half lives. For each half life, half of the material reacts. Therefore, after one half life, 50% remains. Then, after a second, 25% remains. D is the correct answer.
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