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15 Cards in this Set
- Front
- Back
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Waste |
Solids,liquids, and gases that are unusable by the cells of organisms and must be move outside the cell. |
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Energy |
The capacity to do work. Most of the energy used by living organisms comes from the sun. |
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Gas Exchange |
Gas exchange is one of the characteristics of all organisms. Gas exchange occurs at a cellular level with carbon dioxide, oxygen, and water vapor (being the most common gases exchanged). |
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Food |
A substance that provides nutrients for organisms. Photosynthetic organisms produce their own food; all other organisms must consume food. Food is used by organisms for growth, repair, cellular processes, and energy. |
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Unicellular |
Made of a single cell. |
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Multicellular |
Consisting of many cells. |
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Development |
The process of change that occurs during an organism's life to produce a more complex organism. |
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Homeostasis |
The maintenance of stable internal conditions. |
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Reproduction |
The process by which organisms create new individuals of their kind. Some produce asexually (without the joining of two cells) and others produce sexually (the joining of egg and sperm cells). |
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Death |
Without life. |
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Stimulus |
A change in an organism's surroundings that causes the organism to react. |
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Dormancy |
A period when an organism's growth or activity stops. |
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Organism |
A living thing. |
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Cell |
The basic unit of structure and function in an organism. |
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Response |
An action or change in behavior that occurs as a result of a stimulus. |
