TEAS Practice Test Science

Correct Answer: B

Rationale: The correct answer is B because tracking drug dosage and blood levels is essential for quantitative research, providing measurable data for analysis. This method allows for precise measurement and statistical analysis, ensuring objective results. Patient narratives (A) lack quantifiability, making data analysis challenging. Observing physical changes (C) is subjective and doesn't provide quantitative data. Writing journal notes (D) is qualitative and doesn't involve numerical data for quantitative research.

Correct Answer: B

Rationale: The correct answer is B: To exchange gases. The main function of the respiratory system is to facilitate the exchange of oxygen and carbon dioxide between the body and the external environment. This process occurs in the lungs through breathing, where oxygen is taken in and carbon dioxide is expelled. Absorbing nutrients (A) is the function of the digestive system, transporting oxygen (C) is part of the circulatory system's role, and regulating blood pressure (D) is primarily controlled by the cardiovascular system.

Correct Answer: D

Rationale: The correct answer is D, the cerebrum. The cerebrum is the largest part of the brain and is responsible for higher brain functions such as thought, reasoning, memory, and voluntary actions. It consists of the cerebral cortex, which plays a crucial role in processing sensory information and controlling motor functions. The amygdala (A) is involved in emotions and memory, the brain stem (B) controls basic life functions like breathing and heart rate, and the cerebellum (C) coordinates movement and balance. Therefore, the cerebrum is the correct choice for higher brain functions.

Correct Answer: D

Rationale: The correct answer is D: Artificially acquired active immunity. Vaccines stimulate the body's immune system to produce antibodies and memory cells, providing long-lasting protection against specific diseases. This type of immunity is acquired through deliberate exposure to antigens in vaccines, making it artificial and active. A: Naturally acquired passive immunity is when antibodies are passed from mother to baby, providing temporary protection but not long-lasting immunity like vaccines. B: Artificially acquired passive immunity involves receiving pre-made antibodies, providing immediate but short-lived protection, not the prolonged immunity provided by vaccines. C: Naturally acquired active immunity is developed through natural exposure to pathogens, which is different from the intentional exposure to antigens in vaccines.

Correct Answer: C

Rationale: The correct answer is C: Skull. The axial skeleton consists of bones along the central axis of the body, including the skull. The skull protects the brain and is a key part of the axial skeleton. The other choices - A (Femur), B (Humerus), and D (Pelvis) are all part of the appendicular skeleton, which includes the bones of the limbs and girdles. The femur is the thigh bone, the humerus is the upper arm bone, and the pelvis is part of the hip bone, all of which are not considered part of the axial skeleton.