Term
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Definition
| Organisms that obtain energy and nutrients from other organisms, living or dead. |
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Term
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Definition
| Organisms that obtain energy and nutrients from nonliving sources, such as the Sun. |
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Term
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Definition
| Organisms that obtain energy and nutrients from elements such as sulfur, or iron. Some bacteria are chemotrophs. |
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Term
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Definition
| Energy stored in the form of organic molecules the organism makes. Sugar and fat are examples of chemical energy. |
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Term
| Ways organisms use energy |
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Definition
| These include growth, repair, reproduction, movement, etc. |
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Term
| First law of Thermodynamics (aka Law of Conservation of Energy) |
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Definition
| Energy can neither be created nor destroyed, but it can change form. |
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Term
| Second Law of Thermodynamics |
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Definition
| Systems tend to change in a way that increases disorder, or entropy. |
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Term
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Definition
| The amount of disorder of a system. More disorder = more entropy. |
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