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| 7 basic levels of organization |
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| chemical, organelle, cell, tissue, organ system, organism |
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| Homeostasis was founded by |
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| The composition of the body’s internal environment is maintained as relatively constant with only minor changes (fluctuations) which are kept within narrow limits (ex: human body temperature) |
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| about 9.3% of the body is |
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| about 3.3% of the body is |
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| Calcium (Ca++) is involved in |
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| functions from muscle contraction to bone building |
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| mineral also involved in the skeletal system and other parts of the body. |
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| (K) is a mineral which is a crucial electrolyte involved in normal nerve cell message transmission and heartbeat conduction. |
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| small chemical crucial for human survival. |
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| Examples of important trace elements |
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| Iron (Fe), Zinc (Zn), Copper (Cu), and Iodine (I) |
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| Chemistry of living things, including the 4 main elements in the body, Carbon, Oxygen, Hydrogen, and Nitrogen |
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| the use of food by the body such as digestion |
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| Charged atom (ion) which is capable of conducting electrical current when it breaks apart (dissociates) in water |
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| How many major organ systems are there |
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| circulatory system (cardiovascular) |
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| Deals with distribution of blood in the body. |
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| Deals with the defending or protecting the body etc. |
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| Interpret stimuli from the environment |
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| Deal with food metabolism. |
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| Works with muscles to provide movement and supports/protects organs. |
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| Integumary System-(Skin, hair, and nails) |
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| Involves protection and temperature regulation |
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| Works closely with nervous system via hormones and glands to control growth, reproduction, etc. |
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| Distributes oxygen, and other gases plus nutrients and hormones etc |
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| deals with gas exchange and maintaining of pH |
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| Deals with removal of body’s waste products as well as pH maintenance. |
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| deals with the continuation of our species |
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| specializes in communication between the parts of the body and coordinating/controlling behavior and other activities (ex. Digestion and thinking can occur at the same time) |
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| Specializes in the moving of the body and its parts. It is capable of shortening (called contracting) and can thus produce locomotion (movement). There are 3 types: Skeletal, cardiac, and smooth or visceral muscle tissue |
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| Specializes in covering, protecting, secreting and absorbing materials such as sweat and oil. Many types: Skin, lining of organs |
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| Specializes in supporting, protecting, transporting materials (ex: blood, which is a connective tissue) and in immune response. Many varities from the blood to bone fat tissue. |
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