<span>a substance required in relatively larger amounts by living organisms</span>
Neurotransmitters is chemical thing that has at sinaps...it function to sending electric impuls to axon..if neurotransmitters in the low level that makes a impuls slow to arrive the body..so reaction of body can slow motion..neurotrasmitters are slow when you takes a bad chemical thing as carbon monoxide and more...
Answer:
..mmm.... high pressure I guess.....
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and are you sure that the outside will be freaking cold with a freaking sun above ..??..
Answer:
B. They use energy from the sun to make their own food
