Question: Of the following, which is a reactant in the process of photosynthesis that is acquired by plants from the atmosphere?
Answer Options:
• A. ATP
• B. NADPH
• C. Oxygen
• D. Carbon dioxide
Answer: D
Question: Which of the following types of pathogen is responsible for the common cold?
Answer Options:
• A. Bacterium
• B. Virus
• C. Fungus
• D. Protozoan
Answer: B
Question: Which of the following organisms are generally the first to colonize an existing community that has been devastated by fire?
Answer Options:
• A. Grasses and shrubs
• B. Deciduous trees
• C. Cacti and other succulents
• D. Coniferous trees
Answer: A
Question: A person carrying a package climbs a flight of stairs and stops at the top. Which of the following is true about the package when it is at the top of the stairs compared with when it was at the bottom of the stairs?
Answer Options:
• A. It has less total energy.
• B. It has less potential energy.
• C. It has more potential energy.
• D. It has more kinetic energy.
Answer: C
Question: Which of the following characteristics is shared by amphibians, birds, mammals, and reptiles?
Answer Options:
• A. Presence of skin covered by overlapping scales
• B. Presence of mammary glands
• C. Presence of a four-chambered heart
• D. Presence of a backbone
Answer: D
Question: [ImageDisplayed]
Answer Options:
(Not provided)
Answer: C
Question: Students examined a photograph of the Hubble Ultra Deep Field and recorded the data shown in the following table:
Answer Options:
• A. Irregular galaxies are the most common type of galaxy in the universe.
• B. Elliptical galaxies are the most common type of galaxy in the universe.
• C. Spiral galaxies are more common than elliptical galaxies are.
• D. Irregular galaxies are more common than spiral galaxies are.
Answer: C
Question: As the wavelength of a wave increases, what happens to the wave’s frequency?
Answer Options:
• A. The frequency is unchanged.
• B. The frequency decreases.
• C. The frequency increases.
• D. The frequency is not related to the wavelength.
Answer: B
Question: A researcher collects a sample of seawater and a sample of freshwater. The researcher then determines the density of each sample while maintaining both samples under the same temperature and pressure. Which of the following statements best predicts the researcher’s results?
Answer Options:
• A. The freshwater will be denser because it has a greater salinity.
• B. The freshwater will be denser because it has a greater volume.
• C. The seawater will be denser because it has a greater salinity.
• D. The seawater will be denser because it has a greater volume.
Answer: C
Question: Which of the following is true of sodium chloride (NaCl)?
Answer Options:
• A. It is a gas at room temperature.
• B. It is composed of two different elements.
• C. It is composed of two different compounds.
• D. It is chemically unstable.
Answer: B
Question: Of the following, which is the most appropriate to use for measuring the mass of five pencils?
Answer Options:
• A. Tape measure
• B. Graduated cylinder
• C. Stopwatch
• D. Triple beam balance
Answer: D
Question: Which of the following best describes what happens when two positively charged objects are brought near each other?
Answer Options:
• A. The objects are pulled toward one another.
• B. The objects are pushed away from one another.
• C. An electric spark jumps from one object to the other.
• D. Nothing happens until the objects are in physical contact.
Answer: B
Question: On the periodic table, elements in the same row are arranged from left to right by
Answer Options:
• A. an increasing number of neutrons in an atom’s nucleus
• B. a decreasing number of neutrons in an atom’s nucleus
• C. an increasing number of protons in an atom’s nucleus
• D. a decreasing number of protons in an atom’s nucleus
Answer: C