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Ch. 1 The Human Body: An Orientation
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All textbooksMarieb, Hoehn 7th EditionCh. 1 The Human Body: An OrientationProblem 2

Chapter 1, Problem 2

The structural and functional unit of life is a. a cell, b. an organ, c. the organism, d. a molecule.

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Welcome back. Our next question says which of the options listed below is not an organ system in the human body. Choice, a muscular system, B skeletal system, C epithelial system or D respiratory system. Well, all of these are systems except for choice C epithelial system. There is no epithelial system in the human body. There's a type of tissue, epithelial tissue that lines the organs, cavities and glands and covers the surface of the body. But again, that's a type of tissue, not a system. And if we're thinking about uh which system is skin, a part of that would be the integumentary system. So again, choice C epithelial system is not a system but a type of tissue. So choice C is going to be our answer here. See you in the next video.
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The correct sequence of levels forming the structural hierarchy is: a. organ, organ system, cellular, chemical, tissue, organismal b. chemical, cellular, tissue, organismal, organ, organ system c. chemical, cellular, tissue, organ, organ system, organismal d. organismal, organ system, organ, tissue, cellular, chemical
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Which of the following is a major functional characteristic of all organisms? a. movement, b. growth, c. metabolism, d. responsiveness, e. all of these.
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Two of these organ systems bear the major responsibility for ensuring homeostasis of the internal environment. Which two? a. nervous system, b. digestive system, c. cardiovascular system, d. endocrine system, e. reproductive system.
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In (a)–(e), a directional term [e.g., distal in (a)] is followed by terms indicating different body structures or locations (e.g., the elbow/the wrist). In each case, choose the structure or organ that matches the given directional term. a. distal: the elbow/the wrist, b. lateral: the hip bone/the umbilicus, c. superior: the nose/the chin, d. anterior: the toes/the heel, e. superficial: the scalp/the skull
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