Answer:
1921
Explanation:
Acetylcholine was the first neurotransmitter to be discovered. It was isolated in 1921 by a German biologist named Otto Loewi, who would later win the Nobel Prize for his work.
correct order:
1
2
4
3
drinking alcohol and/or drugs
Hi ^-^
The correct answer is: D. contaminated objects
Hope this helps, and please mark as brainliest!
False
Earthquakes and Tornadoes are, but not oil spills that is not a natural disaster.
Hope this helped! : )
