Science TEAS Practice Test

Questions 44

ATI TEAS 7

ATI TEAS 7 Test Bank

Science TEAS Practice Test Questions

Question 1 of 5

Which statement below best describes the process of condensation?

Correct Answer: A

Rationale: The correct answer is A: Condensation is the process of changing from a gas to a liquid. This is because condensation occurs when a gas loses heat energy and transitions into a liquid state. The gas molecules slow down and come closer together, forming liquid droplets. Explanation: 1. In condensation, gas molecules lose energy and move closer together. 2. This causes the gas to transition into a liquid state. 3. The process of condensation is commonly observed in everyday situations like when water vapor in the air cools and forms dew on a cold surface. Summary: B: Changing from a liquid to a gas is called evaporation, not condensation. C: Changing from a solid to a liquid is called melting, not condensation. D: Changing from a solid to a gas is called sublimation, not condensation.

Question 2 of 5

Which organ is primarily responsible for detoxification in the body?

Correct Answer: B

Rationale: The correct answer is B: Liver. The liver is primarily responsible for detoxification in the body as it processes and removes toxins, drugs, and other harmful substances from the bloodstream. It metabolizes these toxins into less harmful compounds that can be excreted from the body. The kidney, although important for filtering waste and regulating electrolytes, is not primarily responsible for detoxification. The lung primarily functions in gas exchange, and the heart is responsible for pumping blood throughout the body, not for detoxification. Therefore, the liver is the correct choice for the organ primarily responsible for detoxification.

Question 3 of 5

If an organism is AB, which of the following combinations in the gametes is NOT possible?

Correct Answer: B

Rationale: The correct answer is B. If an organism is AB, it means they have alleles A and B. In gametes, each gamete carries only one allele. Therefore, gametes with AA are not possible as they lack the B allele. Gametes with AB are possible since they can carry either A or B allele. Gametes with BB are not possible as they lack the A allele. Gametes with AB are possible as they can carry either A or B allele.

Question 4 of 5

Which of the following statements is true about the immune system?

Correct Answer: D

Rationale: The correct answer is D because the immune system is responsible for protecting the body from infections by identifying and eliminating harmful pathogens. It helps the body recognize and respond to foreign invaders such as bacteria and viruses. The hypothalamus (Choice A) is not directly involved in immune system function. While the immune system can help remove toxins, its primary role is to combat infections, not filter toxins from the blood (Choice B). Although infections can sometimes trigger the production of more white blood cells, the immune system's primary function is not to stimulate blood cell production (Choice C).

Question 5 of 5

Which of the following structures connects muscle to bone?

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.

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