When comparing the digestive and urinary system, we can conclude that they both a. are responsible for regulating the amount of salt in the body b. absorb nutrients into the bloodstream c. aid in the digestion of food d. have functions of absorption and elimination

Which of the following is not an internal factor of decision making? a. ethics b. emotions c. peer pressure d. attitude

10. what is one long-term effect of tobacco use? changes in brain chemistry coronary heart disease decreased appetite increased heart rate

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)