Question: Table shows (6, 144) as a point. What does it represent?
Answer Choices: A. 144 miles with 6 gallons of gas B. 24 miles in 1 hour C. 144 miles in 6 hours D. 6 miles with 144 gallons of gas
Answer: A. 144 miles with 6 gallons of gas
Question: Why does a vasectomy lead to infertility?
Answer Choices: A. It blocks sperm from epididymis to urethra. B. It blocks sperm from ejaculatory duct to bulbourethral gland. C. It blocks sperm from prostate gland to bulbourethral gland. D. It blocks sperm from testis to epididymis.
Answer: A. It blocks sperm from epididymis to urethra.
Question: A pudding recipe for 50 people uses 4 cups of sugar. How many bags (6 cups each) are needed for 300 people?
Answer Choices: A. 4 bags B. 13 bags C. 24 bags D. 8 bags
Answer: B. 13 bags
Question: Why does water have a concave meniscus in a glass beaker?
Answer Choices: A. The adhesive forces with the glass are greater than the cohesive forces. B. The cohesive forces with the glass are greater than the adhesive forces. C. Glass has a higher density than water. D. Water has a higher density than glass.
Answer: A. The adhesive forces with the glass are greater than the cohesive forces.
Question: Which of the following is correct regarding the pH scale?
Answer Choices: A. A substance with a pH of 3 is 10 times more alkaline than pH 4. B. A substance with a pH of 3 is 10 times more acidic than pH 4. C. A substance with a pH of 3 is two times more alkaline than pH 4. D. A substance with a pH of 3 is two times more acidic than pH 4.
Answer: B. A substance with a pH of 3 is 10 times more acidic than pH 4.
Question: Which of the following is most likely correct about light wavelength in a photosynthesis experiment?
Answer Choices: A. Three plants do not provide sufficient replications to draw a conclusion. B. Wavelength of light is the only variable that has been changed between groups. C. The wavelength of light does not affect photosynthesis. D. Infrared light contains more energy than the other wavelengths.
Answer: B. Wavelength of light is the only variable that has been changed between groups.
Question: Lifelong protection after chickenpox exposure is due to which type of immunity?
Answer Choices: A. Nonspecific B. Transplantation C. Active D. Innate
Answer: C. Active
Question: What is the dependent variable in car insurance premium calculation?
Answer Choices: A. Model B. Age C. Mileage D. Insurance premium
Answer: D. Insurance premium
Question: Which of the following occurs during inhalation?
Answer Choices: A. Air moves from low pressure to high pressure. B. The ribcage lowers. C. The volume of the thoracic cavity decreases. D. The diaphragm moves downward.
Answer: D. The diaphragm moves downward.
Question: What is 3 8 ÷ 5 12 8 3 ÷ 12 5 ?
Answer Choices: A. 5/32 B. 2/5 C. 9/10 D. 10/9
Answer: D. 10/9
Question: A scientist predicts that germinating beans will use more oxygen. What is this prediction called?
Answer Choices: A. A hypothesis B. A conclusion C. An observation D. Data collection
Answer: A. A hypothesis
Question: Which of the following is a function of a catalyst?
Answer Choices: A. To increase activation energy of a reaction. B. To increase the product yield. C. To convert nonspontaneous to spontaneous. D. To increase the rate of a reaction.
Answer: D. To increase the rate of a reaction.
Question: 0.0025 of products are defective. What percent is this?
Answer Choices: A. 25% B. 0.025% C. 0.25% D. 2.5%
Answer: C. 0.25%
Question: Which of the following substances is excreted by sweat glands from protein breakdown?
Answer Choices: A. Lysozymes B. Urea C. Water D. Sebum
Answer: B. Urea
Question: Which of the following is a property of water?
Answer Choices: A. Water is made up of one molecule of hydrogen and two molecules of oxygen. B. Solid water is more dense than liquid water. C. Water dissolves polar and ionic compounds. D. Water requires less heat than ethanol to raise its temperature.
Answer: C. Water dissolves polar and ionic compounds.
Question: Which reaction occurs when there are excessive protons (H⁺) in the blood?
Answer Choices: A. H₂CO₃ → CO₂ + H₂O B. HCO₃⁻ + H⁺ → H₂CO₃ C. H₂CO₃ → HCO₃⁻ + H⁺ D. CO₂ + H₂O → H₂CO₃
Answer: B. HCO₃⁻ + H⁺ → H₂CO₃
Question: Hypotenuse of triangle is 13 inches. Which pair of sides is valid?
Answer Choices: A. 2.5 inches, 4 inches B. 2.5 inches, 6 inches C. 5 inches, 12 inches D. 5 inches, 8 inches
Answer: C. 5 inches, 12 inches
Question: Carbon has an atomic number of 6. Which of the following is true about the isotope C-12?
Answer Choices: A. C-12 possesses 7 neutrons and 5 electrons in its nucleus. B. C-12 possesses 7 protons and 5 neutrons in its nucleus. C. C-12 possesses 6 neutrons and 6 protons in its nucleus. D. C-12 possesses 6 protons and 6 electrons in its nucleus.
Answer: C. C-12 possesses 6 neutrons and 6 protons in its nucleus.
Question: Which of the following best describes adaptive immunity?
Answer Choices: A. The body’s barrier defenses, such as mucous membranes and secretions. B. The initiation of internal defenses, such as phagocytes and natural killer cells. C. A response to specific traits of specific pathogens. D. The initiation of the inflammatory response.
Answer: C. A response to specific traits of specific pathogens.
Question: 49.5 pounds of fertilizer needed per acre. With 2,000 pounds, how many acres can be covered?
Answer Choices: A. 125 B. 1,000 C. 40 D. 300
Answer: A. 125