Which of the following organs aids in swimming for fish? a. fins c. gills b. lungs d. scales

Are needed by the body in large amounts in order to maintain good health

Which foods are categorized as foods you should "eat less of" on the food label?

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)