Answer:
Hypotheses about the origins of life
Words can only describe but if you have a model you can show people what is happening rather them just using their imagination
These preparations are called Vaccines. A vaccine is a biological preparation that provides active acquired immunity to a particular disease. A vaccine typically contains an agent that resembles a disease-causing micro-organism and is often made from weakened or killed forms of the microbe, its toxins or one of its surface proteins.
Answer: A specific chemical binding to nociceptors
Explanation:
