1 an object is initially at rest which of the following will definitely not cause it to move
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ATI TEAS 7

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1. An object is initially at rest. Which of the following will definitely NOT cause it to move?

Correct answer: B

Rationale: The correct answer is B because if an object is initially at rest and no force is acting on it, it will remain at rest due to Newton's First Law of Motion. This law states that an object at rest will stay at rest unless acted upon by an external force. Choices A, C, and D all involve forces acting on the object, which would cause it to move according to Newton's laws of motion. Choice A, a constant force acting on the object, would cause it to move at a constant velocity. Choice C, a force that increases in magnitude over time, would accelerate the object. Choice D, a force that decreases in magnitude over time, would decelerate the object.

2. In a scientific investigation, what is the first step?

Correct answer: C

Rationale: The correct answer is C: Formation of hypothesis. In a scientific investigation, forming a hypothesis is the initial step. A hypothesis is an educated guess or prediction based on existing knowledge and observations. It helps guide the experiment and provides a direction for the research process. Without a hypothesis, there is no specific aim or goal for the experiment. Choices A, B, and D are incorrect because they occur after the formation of a hypothesis. Analysis of results and drawing conclusions typically come after the experiment has been conducted, while performing the experiment is done to test the hypothesis formed at the beginning of the investigation.

3. Where is the energy for most cellular processes produced?

Correct answer: C

Rationale: The correct answer is C: Mitochondria. The energy for most cellular processes is produced in the mitochondria through the process of cellular respiration. Mitochondria are often referred to as the powerhouse of the cell because they generate ATP, the energy currency of the cell. This process involves the breakdown of glucose molecules to produce ATP, which fuels various cellular activities. Choices A, B, and D are incorrect. The nucleus is responsible for storing genetic material and controlling cell activities, not energy production. The cytoplasm is where various cellular activities take place, but it is not the primary site for energy production. Ribosomes are involved in protein synthesis and do not generate energy for cellular processes.

4. Which of the following components of the human integumentary system is the deepest?

Correct answer: C

Rationale: The hypodermis is the deepest layer of the integumentary system, located below the dermis. It serves as a layer of fat that helps insulate the body, store energy, and provide cushioning. The stratum basale is the deepest layer of the epidermis, not the entire integumentary system. The epidermis is the outermost layer of the skin, followed by the dermis, and then the hypodermis. Therefore, the correct answer is the hypodermis (choice C). Choices A, B, and D are incorrect as they do not represent the deepest layer of the integumentary system.

5. Chyle, a milky white fluid, is transported by lymphatic vessels from the:

Correct answer: B

Rationale: Chyle, a milky white fluid, is formed in the small intestine during digestion. It is composed of lymph and emulsified fats. Lymphatic vessels in the intestines, specifically lacteals, transport chyle from the intestines to the bloodstream for the distribution of nutrients throughout the body. The transport of chyle from the lungs, kidneys, or skin is not correct as these organs are not primarily involved in the production or transportation of chyle.

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