Which of the following statements BEST distinguishes legal drugs from illegal drugs? A. Illegal drugs have higher costs. B. Only illegal drugs are regulated by the government. C. Legal drugs can be used at an earlier age. D. The FDA regulates and approves legal drugs.

Which is an example of a food group? a. oils b. vegetables c. water d. sweets

Group of genes that encode molecules found in all body cells, creating a biochemical “fingerprint” that serves as the “id” for cells so that they are marked as “self” a) deoxyribonucleic acid (dna) b) entry inhibitors c) major histocompatibility complex (mhc) d) non-nucleoside reverse transcription inhibitors (nnrtis)

If you are having a hard time lifting something, you should arch your back. a. true b. false