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What are possible signs and symptoms of drug addiction? check all that apply. declining physical appearance and health failing to meet family, school, or work obligations needing less and less of a drug to get the same effect using drugs when there is no health benefit failing in attempts to stop using a drug stealing to get drugs

Which of the following is a nonspecific defense against pathogens? - b cells - antibodies - t-cells - inflammation

Wheeled coach ambulance uses an interactive computer program to develop and document its products. what is it called?