ati teas 7 science

Correct Answer: C

Rationale: Failed to generate a rationale after 5 retries.

Correct Answer: D

Rationale: Apocrine and eccrine are types of sweat glands in the human body. Apocrine glands are found in areas like the armpits and groin, while eccrine glands are distributed throughout the skin. These glands play a crucial role in regulating body temperature through sweat production. Therefore, the correct answer is D: Sweat glands. A: Blood vessel - Incorrect. Apocrine and eccrine are not blood vessels. B: Cell types - Incorrect. Apocrine and eccrine are not cell types. C: Hormones - Incorrect. Apocrine and eccrine are not hormones.

Correct Answer: C

Rationale: The correct answer is C: Concentration of solute. Molarity is defined as the number of moles of solute per liter of solution. This means it measures the concentration of the solute in a solution, not the volume of the solvent (A), the amount of solute (B), or the temperature of the solution (D). By dividing the moles of solute by the volume of the solution, molarity provides a quantitative measure of how much solute is dissolved in a given volume of solvent.

Correct Answer: A

Rationale: The correct answer is A: Pulmonary vein. The pulmonary vein is the only blood vessel among the choices that carries oxygenated blood from the lungs back to the heart. The pulmonary artery (B) carries deoxygenated blood from the heart to the lungs. The aorta (C) carries oxygenated blood from the heart to the rest of the body. The vena cava (D) carries deoxygenated blood from the body back to the heart. Therefore, the pulmonary vein is the only blood vessel in the list that fits the description of carrying oxygenated blood from the lungs to the heart.

Correct Answer: C

Rationale: The Law of Conservation of Energy states that energy cannot be created or destroyed, only transferred or transformed within a closed system. Therefore, the total amount of energy in a closed system remains constant over time. This is because energy is conserved and does not disappear or appear out of nowhere. The other choices are incorrect because energy does not increase (choice A) or decrease (choice B) in a closed system unless energy is coming in or going out of the system. The total energy in a closed system is independent of the temperature of the system (choice D) and is solely determined by the initial energy within the system and any energy transfers or transformations that occur within it.