TEAS 7 Science Practice Test Questions and Answers 2023

Which blood group is a universal donor? a. A b. B c. AB d. O correct answers: d. O Blood oxygen levels are most likely low when blood a. leaves the aorta b. fills the right atrium c. reaches body tissues d. flows through arteries correct answers: b. fills the right atrium with An intracellular chemical signal can be produced in the cell membrane. Once it is produced, where does it go? a. To a different cell b. To another part of the cell c. To a region right outside the cell d. To an area with high ion concentration correct answers: b. To another part of the cell After food has been masticated in the oral cavity, where does it go next? a. Colon b. Liver c. Pancreas d. Pharynx correct answers: d. Pharynx The diffusion of nutrients through the walls of the digestive system is critical to homeostasis in the body. Where does the majority of this diffusion take place in the digestive system? a. Stomach b. Esophagus c. Oral cavity d. Small intestine correct answers: d. Small intestine