ATI TEAS 7
TEAS 7 science practice
1. What condition is characterized by progressive muscle weakness and wasting?
- A. Muscular dystrophy
- B. Myositis
- C. Fibromyalgia
- D. Carpal tunnel syndrome
Correct answer: A
Rationale: Muscular dystrophy is a genetic disorder characterized by progressive muscle weakness and wasting due to mutations in genes responsible for muscle cells' structure and function. Myositis is an inflammatory muscle disease, fibromyalgia is a chronic pain condition, and carpal tunnel syndrome affects the hand and arm nerves, but none present with the progressive muscle weakness and wasting seen in muscular dystrophy.
2. Delta waves, associated with deep sleep, exhibit what frequency range?
- A. 0.5-4 Hz
- B. 4-8 Hz
- C. 8-13 Hz
- D. 13-30 Hz
Correct answer: A
Rationale: Delta waves are slow brain waves associated with deep sleep stages, specifically stages 3 and 4 of non-REM sleep. These waves have a frequency range of 0.5-4 Hz. Choice B (4-8 Hz) refers to theta waves, which are associated with light sleep and relaxation. Choice C (8-13 Hz) corresponds to alpha waves, present during wakeful relaxation. Choice D (13-30 Hz) represents beta waves, seen in active thinking and concentration. Therefore, the correct answer is A because it aligns with the frequency range characteristic of delta waves during deep sleep.
3. The style of this passage is most like that found in a(n)
- A. tourist guidebook
- B. health textbook
- C. encyclopedia
- D. friendly letter
Correct answer: B
Rationale: The style of the given passage is most similar to that found in a health textbook. The author presents facts and details in a structured bulleted list format, focusing on providing tips and information about eating calcium-rich foods. This style is commonly used in educational materials related to health and nutrition, making choice B the most appropriate among the options provided. Choice A, a tourist guidebook, is incorrect as the passage does not aim to guide or provide information about touristic locations. Choice C, an encyclopedia, is also incorrect as an encyclopedia typically provides comprehensive and in-depth information on various topics, which is not reflected in the passage. Choice D, a friendly letter, is incorrect as the passage does not contain personal or conversational elements that are characteristic of a friendly letter.
4. What is the author’s primary purpose in writing this essay?
- A. To explain how the markings on a snake are related to its venomous nature.
- B. To teach readers the difference between coral snakes and kingsnakes.
- C. To illustrate why snakes are dangerous.
- D. To demonstrate how animals adapt to difficult environments.
Correct answer: B
Rationale: The correct answer is B. The author's primary purpose in writing this essay is to teach readers the difference between coral snakes and kingsnakes. The essay discusses how skin coloration and markings help snakes hide from predators and indicate whether a snake is venomous. By comparing the physical characteristics and behaviors of coral snakes and kingsnakes, the author helps readers understand how to distinguish between the two species to avoid potential dangers. Choice A is incorrect because the essay focuses more on distinguishing between snake species rather than solely on the relationship between markings and venom. Choice C is incorrect as the essay does not aim to illustrate why snakes are dangerous but rather to educate about the differences between specific snake types. Choice D is incorrect as the essay does not discuss how animals survive in difficult environments, but instead focuses on snake markings and behaviors.
5. What is the sum of 3/8 and 5/8?
- A. 1
- B. 1 1/4
- C. 01-Feb
- D. 03-Apr
Correct answer: A
Rationale: To find the sum of fractions, add the numerators if the denominators are the same. Here, 3/8 + 5/8 = (3+5)/8 = 8/8 = 1. Therefore, the correct answer is A. Choices B, C, and D are incorrect because they do not represent the correct sum of the fractions provided in the question.
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