Morphine, opium, codeine, and heroin are examples of the following group of drugs.
A) narcotics
B) hallucinogens
C)depressants
D) stimulants

All houses are built according to safety standards, so it is not important to consider injury prevention while at home. select the best answer from the choices provided. otf

True or false. mucous membranes secrete mucus that traps pathogens.

The presence of aids in a community often increases its level of property what is one of the main reasons for this