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Tissues: Four classes Epithelium Connective Muscle Nervous
Tissues: Four classes Epithelium Connective Muscle Nervous

... o Provide movement for the body o Contain fibers made up of myosin and actin protein filaments ...
docx - STAO
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... Osmosis is the process by which the concentrations of two solutions equalize across a selectively permeable membrane. Osmosis is necessary for the digestive and excretory systems to function. This demonstration models the behaviour of cells in hypertonic and hypotonic solutions. The terms hypertonic ...
Teacher Demo: Eggmosis
Teacher Demo: Eggmosis

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10-4-16 Cells Study Guide - KEY
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EOC_STUDY_GUIDE_adapted_from_Gaston_County
EOC_STUDY_GUIDE_adapted_from_Gaston_County

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Chapter 4 - Tracy Jubenville Nearing
Chapter 4 - Tracy Jubenville Nearing

... Chemical reactions: process that changes that atomic arrangement of molecules  Digestion: process by which large ingested molecules are mechanically and chemically broken down  Salt: substance when acid combines with a base  Metabolism: the sum of all chemical reactions occurring in living cells ...
Characteristics of Life
Characteristics of Life

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Bio reference_guideEOC

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Specialized Cells, Tissues, Organs And Organ Systems
Specialized Cells, Tissues, Organs And Organ Systems

... This organizational concept (I-IV) is the way all living things are organized as well as humans.  The hierarchy of structures starts with the smallest part (a cell) and works up to the largest structure which is the whole body of a living thing.  This includes plants, animals, and other microscopi ...
The Human Body - bakerbiologykingdoms
The Human Body - bakerbiologykingdoms

... them toward the body cells • Axon: single extension carries impulses away from the cell body toward muscles or glands. ...
Chapter 43. - Cloudfront.net
Chapter 43. - Cloudfront.net

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Animal Structure and FUNction
Animal Structure and FUNction

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Chapters 40-47
Chapters 40-47

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Cell theory



In biology, cell theory is a scientific theory which describes the properties of cells. These cells are the basic unit of structure in all organisms and also the basic unit of reproduction. With continual improvements made to microscopes over time, magnification technology advanced enough to discover cells in the 17th century. This discovery is largely attributed to Robert Hooke, and began the scientific study of cells, also known as cell biology. Over a century later, many debates about cells began amongst scientists. Most of these debates involved the nature of cellular regeneration, and the idea of cells as a fundamental unit of life. Cell theory was eventually formulated in 1838. This is usually credited to Matthias Schleiden and Theodor Schwann. However, many other scientists like Rudolf Virchow contributed to the theory. Cell theory has become the foundation of biology and is the most widely accepted explanation of the function of cells.The three tenets to the cell theory are as described below: All living organisms are composed of one or more cells. The cell is the most basic unit of life. All cells arise from pre-existing, living cells, by biogenesis.
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