The correct answer is letter D, the number of neurotransmitter receptors decreases.
Cocaine is a stimulant drug. Stimulants are drugs that induce a feeling of euphoria and elation to a person who is taking them. Stimulant drugs also have the capacity to transmit neurosynaptic at an increased rate. Coffee is an example of caffeine that actually contains small traces of cocaine-like chemicals, this is the reason why you feel awake once you have it in your system.
Persistence
even though he’s injured , he still continues to train
The answer to this question would be: D. Mandatory vaccinations
Communicable disease is a disease that can infect another people because it was caused by a pathogen. Vaccination can give someone immunity to an infectious disease. By making the vaccination mandatory, the number of vaccinated people will be increased and most people will be immune from the disease. Vaccination can cause a disease become eracticated like smallpox.
