ATI TEAS 7 Science SE Practice Exam 1

Which blood group is a universal donor? - Type O Blood oxygen levels are most likely low when blood _____. - fills the right atrium An intracellular chemical signal can be produced in the cell membrane. Once it is produced, where does it go? - To another part of the same cell After food has been masticated in the oral cavity, where does it go next? - 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? - Small intestine As soon as an invader, known as a(n) _____, enters the body, the body begins to fight. - pathogen Where is skeletal muscle found? - attached to bones If a person smells something sweet, what form of information is this initially perceived as in the nervous system? - SENSORY While hiking, a person is startled after encountering a bear. Her palms get sweaty and her heart starts racing. Which part of her nervous system was directly stimulated? - sympathetic Which of the following types of tissues include cells of the immune system and of the blood? - connective Which best describes homeostasis? - A relatively constant environment within the body Fertilization (the fusing of one sperm and an ovum) results in a(n) _____. - zygote Which of the following are included in the male reproductive system? - the penis and epididymis What structure plays a role in air conduction? - Trachea