the above experimental design description is an example of which of the following types of experiments
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ATI TEAS 7

TEAS 7 Science Practice Test

1. The above experimental design description is an example of which of the following types of experiments?

Correct answer: C

Rationale: The above experimental design description involves the manipulation of an independent variable (light exposure) to observe its effects on the dependent variable (plant growth) under controlled conditions. In a controlled experiment, researchers actively manipulate one or more variables while keeping all other variables constant to establish cause-and-effect relationships. Choice A, a field experiment, typically takes place in a real-world setting but still involves manipulation and control of variables. Choice B, a natural experiment, involves observing naturally occurring differences in variables without researcher intervention. Choice D, an observational study, does not involve manipulation of variables, making it different from the described experimental design.

2. Which type of muscle is found in the heart?

Correct answer: B

Rationale: The correct answer is 'B: Cardiac muscle.' Cardiac muscle is the specific type of muscle found in the heart. Unlike smooth muscle and skeletal muscle, cardiac muscle is involuntary and contracts rhythmically to pump blood throughout the body, making it essential for the heart's function. Smooth muscle (Choice A) is found in the walls of hollow organs and blood vessels, while skeletal muscle (Choice C) is attached to bones and responsible for movement. Voluntary muscle (Choice D) is another term for skeletal muscle, which is under conscious control.

3. As a nursing student triaging a patient, which of the following is an example of quantitative data you can gather?

Correct answer: C

Rationale: The corrected choice C, 'The patient's temperature is 101.7°F,' is an example of quantitative data because it provides a specific numerical value that can be measured. Quantitative data involves measurable and numerical information, making it crucial for assessing a patient's condition objectively. Choices A and B are subjective statements based on the patient's perception of pain and its description, which are qualitative data and may vary between individuals. Choice D provides historical information about a fever, which is not a current measurable value and does not constitute quantitative data for immediate assessment.

4. What is the study of fungi known as?

Correct answer: B

Rationale: Mycology is the correct answer. Mycology is the branch of biology that specifically deals with the study of fungi. Fungi constitute a separate kingdom of organisms that include various forms such as yeasts, molds, and mushrooms. Virology (A) is the study of viruses, while Bacteriology (C) focuses on bacteria. Parasitology (D) is the study of parasites, which may include protozoa, helminths, and some fungi, but it is not solely dedicated to fungi.

5. Which type of waves do not require a medium for propagation?

Correct answer: C

Rationale: Electromagnetic waves do not require a medium for propagation as they consist of oscillating electric and magnetic fields that can travel through a vacuum. This property allows electromagnetic waves, such as light, radio waves, and X-rays, to propagate through space. In contrast, transverse and longitudinal waves require a medium (solid, liquid, or gas) for propagation. Transverse waves have vibrations perpendicular to the direction of energy transfer, while longitudinal waves have vibrations parallel to the direction of energy transfer. Surface waves, which are a combination of transverse and longitudinal waves, also need a medium for propagation. Understanding the distinction between these wave types is essential in various fields, including physics and communication technologies.

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