Answer:
Serotonin is thought to be the underlying neurotransmitter involved in migraine, based on a lower than normal level of serotonin (5-HT) which increases during attacks.
Answer:
Sudden sickness in the stomach. Infectious organisms, including bacteria, viruses, and parasites, or their toxins are the most common causes of food poisoning.
Explanation:
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By killing the dividing cancer cells but takes the normal cells too
The answer should be d because you move down the body from the head/neck to the thorax then the limbs and so on
