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A group of organs that work together to perform a closely related function is called a(n) A. organ system. B. organism. C. tissue. D. cell
Weegy: hi the answer is c=organ system is to organ User: This cell is representative of the ________ system. A. skeletal B. nervous C. endocrine D. muscular User: The excretory system consists of which of the following organs? A. stomach, liver, pancreas B. lungs, nose, trachea C. kidneys, ureters, urinary bladder D. brain, spinal cord, sense organs Weegy: The organs in the excretory system are: the lungs, skin, liver, kidney and bladder. Read more: User: Which human body system is responsible for transporting nutrients to the cells? A. circulatory B. integumentary C. respiratory D. digestive Weegy: Transporting nutirents is A. Circulatory system (More)
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Asked 5/22/2012 4:11:53 PM
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From simplest to most complex the four levels of organization of the human body are A. tissues, cells, organs and organ systems. B. cells, tissues, organs and organ systems. C. organ systems, tissues, cells and organs. D. cells, organs, tissues and organ systems
Weegy: The levels of organization in the correct order then are: cells - > tissues - > organs - > organ systems - > organisms In unicellular (single-celled) organisms, the single cell performs all life functions. It functions independently. [ However, multicellular (many celled) organisms have various levels of organization within them. Individual cells may perform specific functions and also work together for the good of the entire organism. The cells become dependent on one another. Multicellular organisms have the following 5 levels of organization ranging from simplest to most complex: LEVEL 1 - Cells Are the basic unit of structure and function in living things. May serve a specific function within the organism Examples- blood cells, nerve cells, bone cells, etc. LEVEL 2 - Tissues Made up of cells that are similar in structure and function and which work together to perform a specific activity Examples - blood, nervous, bone, etc. Humans have 4 basic tissues: connective, epithelial, muscle, and nerve. LEVEL 3 - Organs Made up of tissues that work together to perform a specific activity Examples - heart, brain, skin, etc. LEVEL4 - Organ Systems Groups of two or more tissues that work together to perform a specific function for the organism. Examples - circulatory system, nervous system, skeletal system, etc. The Human body has 11 organ systems - circulatory, digestive, endocrine, excretory (urinary), immune(lymphatic), integumentary, muscular, nervous, reproductive, respiratory, and skeletal. LEVEL 5 - Organisms Entire living things that can carry out all basic life processes. Meaning they can take in materials, release energy from food, release wastes, grow, respond to the environment, and reproduce. Usually made up of organ systems, but an organism may be made up of only one cell such as bacteria or protist. Examples - bacteria, amoeba, mushroom, sunflower, human ] User: Which of the following tissue types is made of cells that can ... (More)
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Asked 5/22/2012 4:17:26 PM
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Which structure branches further into alveoli? A. nasal cavity B. epiglottis C. bronchiole D. laryngopharynx Which structure branches further into alveoli? A. nasal cavity B. epiglottis C. bronchiole D. laryngopharynx
Weegy: C User: The respiratory system depends on the nervous system for signals to A. coordinate the muscles that control breathing. B. exchange gases with the circulatory system. C. enhance the amount of available oxygen in the lungs. D. release enzymes to increase the exchange of gases. Weegy: The correct answer is C. Coordinate musles controlling breathing. User: Disease and disorders of the respiratory system include all of the following except A. lung cancer. B. stroke. C. asthma. D. emphysema. Weegy: stroke is the answer. User: The respiratory disease that cause destruction of alveoli and the elastic fibers in the lungs is known as A. emphysema. B. asthma. C. tuberculosis. D. bronchitis. Weegy: The answer is B. asthma. (More)
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Asked 5/22/2012 7:06:39 PM
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