NLN PAX PREP Science Spring with Complete Solutions

Which of these structures of the male reproductive system carries sperm cells from the testes to the lower part of the abdomen?Correct answer - Vas deferens A method for determining the blood alcohol content of a subject is toCorrect 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 containsCorrect 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?Correct 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?Correct 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 toCorrect 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 probablyCorrect answer - Carbon dioxide Guard cells which can be found in the leaves of plants are most closely associated with which of these processes?Correct answer - Evaporation of water from the plant. Human testes produceCorrect 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?Correct answer - 50% - 75% If the medulla of the brain in a human was damaged, which of these conditions would most likely result?Correct 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. carnivoreCorrect answer - Pioneer organism In varieties of matter, the term heterogeneous may be applied toCorrect answer - Mixtures, but not elements or compounds The inherited factors that are transmitted in an organism from generation to generation are called its Homozygote.Correct answer - Genotype The organ that filters metabolic waste from the blood is the Small intestine.Correct answer - kidney Unicellular organisms that have a nucleus and can swim with the aid of cilia are examples of Monerans. A. monerans B. plants C. fungi D. protozoansCorrect answer - protozoans Which of these conditions is associated with smoking?Correct answer - Emphysema Which of these organisms use nitrogen directly from the air?Correct answer - Blue-green algae. Which of these particles can only be found in the nucleus of an atom? Correct answer - protons and neutron Which of these processes is responsible for the recorded production of CO2 by yeast cells from sugar solution?Correct answer - Anaerobic respiration Which of these quantities is a vector quantity?Correct answer - Energy Which of these temperatures is known as Absolute Zero?Correct answer - O ° K . . . . . . . .. . .. .