Taxonomy seeks to organize all living things in a logical manner.
Acetylcholine (ACh)
Acetylcholine is an organic chemical that functions in the brain and body of many types of animals as a neurotransmitter.
Answer:
Refraction is an effect that occurs when a light wave, incident at an angle away from the normal, passes a boundary from one medium into another in which there is a change in velocity of the light. ... The wavelength decreases as the light enters the medium and the light wave changes direction.
Avoid carcinogens (like smoking residues..etc), eat healthy and sleep well in order to maintain a strong immune system
