ati teas 7 science

Correct Answer: C

Rationale: The correct answer is C: Diffraction. Diffraction is the phenomenon that explains the bending of light waves as they pass around an obstacle or through an aperture. This occurs when light waves encounter an obstruction or opening that causes the waves to spread out and bend around the edges, leading to interference patterns. Refraction (A) is the bending of light as it passes through different mediums, not around obstacles. Reflection (B) is the bouncing back of light waves when they hit a surface. Dispersion (D) is the splitting of light into its component colors due to differences in wavelength. Therefore, based on the context of the question, diffraction is the most appropriate explanation for the bending of light in this scenario.

Correct Answer: B

Rationale: The adrenal glands are responsible for secreting adrenaline and cortisol in response to stress, triggering the fight-or-flight response. Adrenaline increases heart rate and blood flow, while cortisol releases energy stores. The pancreas regulates blood sugar, the thyroid gland controls metabolism, and the pituitary gland regulates hormone production but are not directly involved in the fight-or-flight response.

Correct Answer: D

Rationale: The correct answer is D because muscle tissue is indeed involved in all the functions listed. Muscles generate body heat through metabolism, stabilize joints by providing support and movement, and help maintain posture by keeping the body in an upright position. Therefore, muscle tissue plays a crucial role in all these functions. Choices A, B, and C are incorrect individually as they only represent a part of the functions that muscle tissue is involved in, whereas the correct answer encompasses all aspects of muscle function in the body.

Correct Answer: B

Rationale: The correct answer is B: Pulmonary artery. The pulmonary artery carries deoxygenated blood from the heart to the lungs for oxygenation. This is a crucial step in the pulmonary circulation system. The pulmonary vein carries oxygenated blood from the lungs back to the heart, so it does not transport blood from the heart to the lungs. The aorta is responsible for carrying oxygenated blood from the heart to the rest of the body, not to the lungs. The superior vena cava is a large vein that carries deoxygenated blood from the upper body to the heart, not to the lungs. Therefore, the pulmonary artery is the correct choice for transporting blood from the heart to the lungs.

Correct Answer: C

Rationale: Failed to generate a rationale after 5 retries.