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TEAS Science Practice Exam/ Questions & Answers/Latest 2022

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A student wants to design an experiment the effects of acid rain on plant life. Which of the following substances should be combined with water to best simulate acid rain? A. Vinegar B. Table salt ... C. Baking soda D. Ammonia (ANS- A. Vinegar Which of the following terms describe the direct conversation of dry ice from the solid to the gas phase? A. Fusion B. Condensation C. Sublimation D. Evaporation (ANS- C. Sublimation Which of the following is the result when hemoglobin fails to transport sufficient amounts of oxygen? A. Angina B. Hearing loss C. Bone density loss D. Anemia (ANS- A. Angina The nucleus of an atom is composed of uncharged particles as well as which of the following? A. Protons B. Neutrons C. Electrons D. Positrons (ANS- A. Protons In a certain plant, red flower color (R) is dominant over white (r). If a plant heterozygous for red flower color and one with white flower color are crossed, whcih of the following would be the expected proportion of individuals in the next generation? A. 4/4 red, 0/4 white B. 3/4 red, 1/4 white C. 1/2 red, 1/2 white D. 1/4 red, 3/4 white (ANS- B. 3/4 red, 1/4 white Which of the following is a main function of vitamins? A. Providing structure to cell membranes B. Supplying the brain with an energy source C. Facilitating the action of enzymes D. Promoting the absorption of carbohydrates (ANS- C. Facilitating the action of enzymes Which of the following is the key factor driving cellular differentiation in the body? A. Chemical gradients in the cellular environment B. Systemic hormonal influences C. Rate of transcription D. Cellular nutritional status (ANS- C. Rate of transcription Which of the following is a passive method by which glucose molecules enter cells? A. Osmosis B. Protein pump C. Filtration D. Facilitated diffusion (ANS- D. Facilitated diffusion Which of the following statements best describes the energy of a waterfall? A. The water has kinetic energy because of its position at the top of the waterfall B. The water has potential energy because of its movements as it falls to the bottom of the waterfall C. Potential energy changes to kinetic energy as the water falls D. Kinetic energy changes to potential energy as the water falls (ANS- C. Potential energy changes to kinetic energy as the water falls [Show More]

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