ATI TEAS Science

Correct Answer: A

Rationale: The correct answer is A: Merkel's discs. Merkel's discs are located in the epidermis and respond to light touch and slower vibrations due to their sensitivity to sustained pressure. Pacinian corpuscles (B) detect deep pressure and fast vibrations. Meissner's corpuscles (C) are responsible for detecting light touch but not vibrations. Ruffini endings (D) respond to skin stretch and warmth but not specifically to light touch and slower vibrations. Therefore, Merkel's discs are the most appropriate choice for receptors that respond to light touch and slower vibrations.

Correct Answer: D

Rationale: The correct answer is D: Catabolism. 1. Catabolism specifically refers to the process of breaking down large molecules into smaller molecules to release energy. 2. Metabolism (A) is the overall set of chemical reactions that occur in an organism, including anabolism and catabolism. 3. Bioenergetics (B) is the study of energy transformation in living organisms, not specifically the breakdown of molecules. 4. Anabolism (C) is the opposite process of catabolism, involving the building of large molecules from smaller ones, requiring energy input.

Correct Answer: A

Rationale: The correct answer is A: Merkel's discs. Merkel's discs are located in the epidermis and respond to light touch and slower vibrations due to their sensitivity to sustained pressure. Pacinian corpuscles (B) detect deep pressure and fast vibrations. Meissner's corpuscles (C) are responsible for detecting light touch but not vibrations. Ruffini endings (D) respond to skin stretch and warmth but not specifically to light touch and slower vibrations. Therefore, Merkel's discs are the most appropriate choice for receptors that respond to light touch and slower vibrations.

Correct Answer: A

Rationale: Platelets are responsible for clotting by forming a plug at the site of injury. They release chemicals to initiate clotting cascades. Red blood cells transport oxygen, antigens are markers on cells, and plasma cells are involved in immune response, not clotting. Therefore, the correct answer is A.

Correct Answer: A

Rationale: The correct answer is A: They're both accurate and precise. Rationale: 1. Accuracy: The measurements are close to the accepted value of 9.8 m/s^2, with a range of 9.78-9.81 m/s^2. 2. Precision: The measurements are consistent and clustered closely around the true value, indicating precision. 3. The slight variations in measurements are expected due to experimental error but still fall within an acceptable range. In summary, the measurements are accurate as they are close to the true value, and they are precise as they are clustered closely together. Other choices are incorrect because they do not accurately reflect the situation based on the provided data.