NLN SCIENCE PRACTICE TEST LATEST UPDATE 2022

NLN SCIENCE PRACTICE TEST LATEST UPDATE 2022 A drop of dilute ammonium hydroxide (NH4OH) is placed on one side of the slide containing a large number of swimming parmecium. Under this condition, which of these behaviors of the paramecia will be observed? - Correct Answer-they will eventually all swim toward the ammonium hydroxide they will show no net change in behavior to the ammonium hydroxide they will all be instantly killed by the ammonium hydroxide they will eventually all swim away from the ammonium hydroxide they will eventually all swim away from the ammonium hydroxide A method for determining the blood alcohol content of a subject is to? - Correct Answer-do a Mantoux test do a dick test use a breathalyzer inspect the size of the pupils 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? - Correct Answer-carbon dioxide hydrogen oxygen nitrogen carbon dioxide A person who was in an auto accident has formed a blood clot at the site of the injury. One event that can lead to formation of a blood clot is that? - Correct Answerred blood cells release hemoglobin bone marrow cells decrease platelet production white blood cells release antibodies ruptured platelets release thromboplastin ruptured platelets release thromboplastin An unknown gas is more dense than air, does not support combustion, and turns a limewater solution cloudy. This gas is most probably? - Correct Answer-ammonia methane carbon dioxide hydrogen carbon dioxide Guard cells which can be found in the leaves of plants are most closely associated with which of these processes? - Correct Answer-reproduction of a new plant evaporation of water from the plant synthesis of organic substances in the plant movement of organic and inorganic substances from soil to the plant Human testes produce? - Correct Answer-eggs follicle stimulating hormones growth hormone spermatozoa 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-100% ........