NLN PAX PREP Science – Spring Real Exam Questions and Answers | Already Passed Rated A+ | Verified

NLN PAX PREP Science – Spring Real Exam Questions and Answers | Already Passed Rated A+ | Verified Which of these structures of the male reproductive system carries sperm cells from the testes to the lower part of the abdomen? - ANSWER Vas deferens A method for determining the blood alcohol content of a subject is to - ANSWER Use a Breathalyzer A person blows his breath into a straw that is placed in limewater. The limewater becomes cloudy because the person's breath contains - ANSWER carbon dioxide A physician measures the pulse and blood pressure (BP) of all patients on a routine basis. Which of these measurements show the normal BP values for a resting adult patient? - ANSWER 120/80 mm Hg A student focuses sunlight to a point with a thin converging (convex) lens. Which of these direct measurements can the student make as a result of this experiment? - ANSWER The approximate focal length of the lens. A woman suddenly chokes on a piece of food and clutches frantically at her throat. An immediate remedy is to - ANSWER Apply quick, hard pressures successively to her abdomen, just beneath her diaphragm. An unknown gas is denser than air, does not support combustion, and turns a limewater solution cloudy. This gas is most probably - ANSWER Carbon dioxide Guard cells which can be found in the leaves of plants are most closely associated with which of these processes? - ANSWER Evaporation of water from the plant. Human testes produce - ANSWER Spermatozoa If a red light is passed through a dilute solution of chlorophyll solution, the spectrophotometer will detect what amount of transmittance of this light? - ANSWER 50% - 75% If the medulla of the brain in a human was damaged, which of these conditions would most likely result? - ANSWER Difficulty in breathing In ecological succession, the first living thing to colonize a hitherto barren area is called A. producer B. primary consumer C. pioneer organism D. carnivore - ANSWER Pioneer organism