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Definition
| The total of all reaction occurring in a living organism |
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| The rate at which an organism uses energy |
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| The system of organs that obtain oxygen from the air and eliminate carbon dioxide from the body |
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| An organ that exchanges gases between the atmosphere and the blood |
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Definition
| A part of the digestive tract |
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Definition
| The sound producing organ (voice box) |
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Definition
| The space between the vocal folds |
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| The two branches of the trachea; function in carrying air to and from the lungs |
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| One of many tiny branches from the bronchi; carries air to and from alveoli within the lung |
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| A body region between the head and abdomen |
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| Aids breathing, muscle that separates the thorax from the abdomen |
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| A group of tissues and organs that work together to digest an organism's food |
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| The process of breaking food into smaller pieces and mixing it with the digestive juices |
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Definition
| Chemically breaking down food into substances that the body can use |
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| The watery fluid secreted into the mouth by the salivary glands that moistens foods and begins starch digestion |
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Definition
| The digestive organ in which most of the digestion and absorption of food occurs |
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| The part of the digestive tract that extends from the end of the small intestine to the exit |
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| The organ that produces bile, helps to regulate substances in the blood, and stores minerals and vitamins |
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Definition
| A unit used to indicate the amount of energy released from food during cellular respiration |
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Definition
| Produced by the liver; helps to separate lipids into small droplets to aid digestion |
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Definition
| The semi-liquid mixture of digestive juices and partly digested food in the stomach and small intestine |
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| Microscopic finger-like structures that line that wall of the small intestine |
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