Answer:
Opioids
Opioids are a class of drugs that include the illegal drug heroin, synthetic opioids such as fentanyl, and pain relievers available legally by prescription
Answer:
local numbs the target area and systemic numbs the whole system
they are both anesthetics
Explanation:
C) Red Blood Cells
Red blood cells contains hemoglobin, which provide oxygen
The answer is true. They fight things like the flu, but they don't fight bacteria like antibiotics.
An infection is a disease caught by a person or people that could make someone or something sick. It can be cured or repelled with a special medication.