PAX Science NLN Exams collection 2022- 2023 LATEST, (Answered) | Verified 50 Q/A 1.1 kilogram (kg) of solid X at 10°C and 1 kg of solid Y at 10°C each absorb 5 joules of heat energy. The final temperatures of X and Y are 15°C and 20°C, respectively. Compared to X, Y must have a lower Specific heat 2.A drop of dilute ammonium hydroxide (NH4OH) is placed on one side of a slide containing a large number of swimming paramecium. Under this condition, which of these behaviors of the paramecia will be observed?They will eventually all swim away from the ammonium hydroxide 3.A person blows his breath into a straw that is placed in limewater.The limewater becomes cloudy because the person's breath containsCarbon Dioxide 4.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?The approximate focal length of the lens 5.A woman suddenly chokes on a piece of food and clutches frantically at her throat. An immediate remedy is toapply quick, hard pressures successively to her abdomen, just beneath her diaphragm.
6.An unknown gas is more dense than air, does not support combustion, and turns a limewater solution cloudy. This gas is most probablyCarbon Dioxide 1 / 2
7.Guard cells which can be found in the leaves of plants are most closely associated with which of these processes?Evaporation of water from the plant 8.Human testes producespermatozoa 9.If a red light is passed through a dilute solution of chlorophyll solution, the spectrophotometer will detect what amount of transmittance of this light?50-75% 10.If the medulla of the brain in a human was damaged, which of these conditions would most likely result?Difficulty in breathing 11.In varieties of matter, the term heterogeneous may be applied tomixtures, but not elements or compounds 12.Periodontitis is an inflammatory condition of thegum tissue that surrounds the neck of each tooth 13.The atoms of an element with seven valence electrons are most probably classified asnonmetals 14.The bending of a wave around an obstacle is known as diffraction 15.The organ that filters metabolic waste from the blood is the kidney 16.Which of these processes is responsible for the recorded production of CO2 by yeast cells from sugar solution?Anaerobic respiration 17.Which of these quantities is most closely associated with an object's inertia?Mass 18.Which of these sequences of anatomic organization, from the simplest level to the most complex, is the correct sequence?From tissue, organ, organ system to organism.
19.Which of these single instruments may be used to measure the current flowing through a circuit?An ammeter
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