which of the following does not contain blood vessels
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ATI TEAS 7

Science TEAS Practice Test

1. Which of the following layers of the skin does not contain blood vessels?

Correct answer: C

Rationale: The epidermis is the outermost layer of the skin and is avascular, meaning it does not contain blood vessels. It receives nutrients through diffusion from the underlying dermis. The hypodermis is the subcutaneous tissue beneath the dermis and contains blood vessels. The dermis is the layer of skin between the epidermis and hypodermis, which contains blood vessels, nerves, hair follicles, and sweat glands. 'Hyperdermis' is not a correct anatomical term and is not a layer of the skin, making it an incorrect choice for this question.

2. Define the term 'velocity' in relation to motion.

Correct answer: A

Rationale: Velocity is a vector quantity that describes the speed of an object along with its direction of motion. Unlike speed, which is a scalar quantity focusing solely on the magnitude of motion, velocity considers both speed and direction. Therefore, the best definition of velocity is 'speed in a specific direction.' Choice B, 'Distance traveled in a given time,' is incorrect as it defines speed rather than velocity. Choice C, 'Rate of change of position,' is more aligned with the definition of velocity but lacks the specificity of direction. Choice D, 'Acceleration due to gravity,' is unrelated to the definition of velocity and refers to a different concept in physics.

3. Which word best completes the sentence: 'The scientist's breakthrough was met with _____ applause.'

Correct answer: A

Rationale: The word 'thunderous' is the most suitable choice in this context. It accurately conveys the idea of loud, intense, and enthusiastic applause, which aligns with the significance of the breakthrough mentioned in the sentence. 'Scattered,' 'polite,' and 'hesitant' do not adequately capture the level of excitement and appreciation conveyed by the word 'thunderous' in the context of a significant scientific breakthrough.

4. Which of the following substances is NOT a product of cellular respiration?

Correct answer: C

Rationale: The correct answer is C. Oxygen is not a product of cellular respiration; instead, it is consumed during the process. During cellular respiration, glucose is broken down in the presence of oxygen to produce energy in the form of ATP, carbon dioxide, and water. Carbon dioxide is released as a waste product, water is a byproduct of the chemical reactions, and ATP is the energy currency used by cells. Therefore, options A, B, and D are all products or outcomes of cellular respiration, while oxygen is a reactant.

5. Curtis measured the temperature of water in a flask in his science class. The temperature of the water was 35 °C. He carefully heated the flask so that the temperature of the water increased by about 2 °C every 3 minutes. Approximately how much had the temperature of the water increased after 20 minutes?

Correct answer: B

Rationale: To find the increase in temperature after 20 minutes, calculate how many 3-minute intervals are in 20 minutes (20 ÷ 3 = 6.66, rounding to 7 intervals). Then, multiply the temperature increase per interval (2 °C) by the number of intervals (7 intervals), giving a total increase of 14 °C. Therefore, after 20 minutes, the temperature of the water would have increased by approximately 14 °C. Choice A, 10 °C, is incorrect as it underestimates the total increase. Choice C, 15 °C, is incorrect as it overestimates the total increase. Choice D, 35 °C, is incorrect as it represents the initial temperature of the water, not the increase in temperature.

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