Science TEAS Practice Test

Correct Answer: C

Rationale: The correct answer is C: White blood cells. White blood cells, specifically lymphocytes, are responsible for producing antibodies as part of the immune response. Platelets are involved in blood clotting, not antibody production. Red blood cells carry oxygen and do not play a role in immune responses. Plasma cells are a type of white blood cell that produces antibodies, but they are a specialized subset of white blood cells and not the main component responsible for antibody production.

Correct Answer: B

Rationale: The correct answer is B: Tendons. Tendons are fibrous connective tissues that attach muscle to bone, allowing for movement. Ligaments (A) connect bone to bone, muscles (C) are the tissues responsible for movement, and bones (D) are the rigid structures that make up the skeletal system. Tendons play a crucial role in transmitting the force generated by muscles to move bones, making them the correct choice in this scenario.

Correct Answer: C

Rationale: The correct answer is C: White blood cells. White blood cells, specifically lymphocytes, are responsible for producing antibodies as part of the immune response. Platelets are involved in blood clotting, not antibody production. Red blood cells carry oxygen and do not play a role in immune responses. Plasma cells are a type of white blood cell that produces antibodies, but they are a specialized subset of white blood cells and not the main component responsible for antibody production.

Correct Answer: D

Rationale: The correct answer is D because all the statements provide reasonable explanations for the decrease in mortality during childbirth in the 21st century. A: Cesarean sections can be life-saving in cases of complications like prolonged labor or fetal distress. B: Monitoring tools help detect issues early, allowing for timely interventions and prevention of complications. C: Good hand hygiene reduces the risk of infections that could lead to maternal mortality. Therefore, by combining the advancements in cesarean sections, monitoring tools, and infection prevention practices, modern healthcare has significantly reduced maternal mortality rates compared to the 18th century.

Correct Answer: D

Rationale: The correct answer is D because T cells play a crucial role in the immune response by recognizing and attacking infected cells or pathogens. They are a type of white blood cell, making choice B valid. Choice C is accurate as T cells mature in the thymus during their development. Choice A is incorrect because T cells are present in all individuals, not just those with leukemia.