Science TEAS Practice Test

Questions 44

ATI TEAS 7

ATI TEAS 7 Test Bank

Science TEAS Practice Test Questions

Question 1 of 5

Which of the following is not a type of muscle tissue?

Correct Answer: D

Rationale: The correct answer is D: Adipose. Adipose tissue is a type of connective tissue that stores fat, not a type of muscle tissue. Skeletal, smooth, and cardiac tissues are the three main types of muscle tissue. Skeletal muscles are attached to bones, smooth muscles are found in organs and blood vessels, and cardiac muscles are specific to the heart. Adipose tissue does not have the contractile properties of muscle tissue, making it the correct choice.

Question 2 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 3 of 5

A researcher is studying the response of bacteria to a certain chemical. In three experiments, the bacteria swim towards the chemical, and in one experiment, the bacteria swim away from it. What would be the most appropriate next step for the researcher?

Correct Answer: C

Rationale: The correct answer is C: Repeat the experiment several more times and apply a statistical analysis to the data. This is the most appropriate next step because it allows the researcher to gather more data to ensure the results are consistent. By repeating the experiment multiple times, the researcher can determine if the observed behavior of the bacteria is reliable and not just due to chance. Additionally, applying statistical analysis will help in drawing meaningful conclusions from the data and identifying any patterns or trends. Choice A is incorrect because it overlooks the contradictory result from the fourth experiment, which is crucial information that should not be ignored in scientific reporting. Choice B is also incorrect as it does not address the need for further investigation to validate the results. Choice D is not the best next step as it introduces a new variable (chemical), which could complicate the analysis and may not directly address the observed behavior of the bacteria in response to the initial chemical.

Question 4 of 5

Which of the following structures has the lowest blood pressure?

Correct Answer: D

Rationale: The correct answer is D: Veins. Veins have the lowest blood pressure among the structures listed. This is because veins have thinner walls and larger lumens compared to arteries and arterioles, which results in less resistance to blood flow and lower pressure. Venules are small vessels that connect capillaries to veins and have slightly higher pressure than veins. Arteries and arterioles have thicker walls and smaller lumens to withstand the higher pressure of blood ejected by the heart. Therefore, veins have the lowest blood pressure due to their structural characteristics.

Question 5 of 5

When human cells divide by meiosis, how many chromosomes do the resulting cells contain?

Correct Answer: D

Rationale: Step-by-step rationale: 1. Meiosis involves two rounds of cell division. 2. In meiosis I, homologous chromosomes separate, resulting in haploid daughter cells with half the number of chromosomes. 3. In meiosis II, sister chromatids separate, resulting in four haploid daughter cells. 4. Since humans have 46 chromosomes in their somatic cells, each resulting cell after meiosis will contain 23 chromosomes. Summary: A: 96 is incorrect as it is a doubled diploid number. B: 54 is incorrect as it is not the correct halving of the diploid human chromosome number. C: 46 is incorrect as it represents the original number of chromosomes in a human somatic cell, not the resulting number after meiosis.

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