how is power related to time
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ATI TEAS 7

TEAS 7 science quizlet

1. How is power related to time?

Correct answer: C

Rationale: Power is a measure of how quickly work is done or energy is transferred. It is defined as the rate at which work is done or energy is transferred. Power is not directly or inversely proportional to time, as it depends on the amount of work done or energy transferred, not the duration over which it is done. The relationship between power and time is not a direct one, so power is unrelated to time. Choice A and B are incorrect because power's relationship with time is not one of direct or inverse proportionality. Choice D is incorrect because power is not simply the product of time and work; it is the rate at which work is done or energy is transferred, which can vary independently of time.

2. What is the function of the pharynx?

Correct answer: A

Rationale: The correct answer is A: 'Allow food and air to pass into the body.' The pharynx serves as a common pathway for both food and air. It connects the nasal cavity and mouth to the larynx and esophagus, enabling the passage of both food and air into their respective pathways. Choices B, C, and D are incorrect as they do not accurately describe the function of the pharynx. Option B is incorrect because the warming and moistening of air primarily occur in the nasal cavity and not in the pharynx. Option C is incorrect as the creation of a chest cavity is mainly related to the thoracic cavity, not the pharynx. Option D is also incorrect as the structural support to the alveolar region is provided by other structures like the alveoli and surrounding tissues, not the pharynx.

3. Which of the following is the control group in the above experiment?

Correct answer: D

Rationale: The correct answer is D: There is no control group in this experiment. A control group is a group in an experiment that does not receive the treatment being studied in order to serve as a baseline for comparison. In this case, all three tanks (A, B, and C) are being treated with different amounts of fertilizer, and there is no group that is left untreated to serve as a control for comparison. Choices A, B, and C are incorrect because they all represent tanks that are part of the experimental groups receiving different amounts of fertilizer, thus none of them can be considered the control group.

4. What is the term for the mixture of reactants and products present during a chemical reaction?

Correct answer: C

Rationale: The term 'reaction mixture' is used to describe the combination of both reactants and products that exist simultaneously during a chemical reaction. It encompasses not only the initial substances (reactants) but also the resulting compounds (products) formed throughout the reaction process. Choice A, 'Solution,' typically refers to a homogenous mixture where one substance is dissolved in another. Choice B, 'Mixture,' is a general term that does not specifically indicate the mix of reactants and products in a chemical reaction. Choice D, 'Precipitate,' specifically refers to the solid formed when two solutions react and a solid compound is produced.

5. Which of the following is an example of a tissue?

Correct answer: B

Rationale: The correct answer is 'B: liver.' The liver is an example of a tissue. Tissues are groups of cells that work together to perform specific functions in the body. The liver is made up of different types of cells that work together to carry out various essential functions, such as detoxification, metabolism, and storage of nutrients. Option A (chloroplasts) refers to organelles, not tissues. Option D (hamstring) is a muscle, not a tissue. Option C (mammal) represents a higher level of organization than tissues, as it refers to a classification of organisms, not a specific tissue type.

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