Answer:
Colloids or colloidal solutions are mixtures in which microscopically dispersed insoluble particles of one substance are suspended in another substance. The size of the suspended particles in a colloid can range from 1 to 1000 nanometers (10-9 meters).
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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...
Accumulating physical activity experiences is the key to improve our physical activity performances.
