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| Smallest unit with the capacity to live and reproduce, independently or as a part of a multicellular organism |
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| Individual consisting of interdependent cells |
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| Group of individuals of the same kind that occupy the same area |
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| Populations of all species that occupy the same area |
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| Group of communities interactiong with their shared physical environment |
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| All regions of Earth's crust, waters, and atmosphere that sustain life |
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| Characteristics that depend on the level of organization of matter, but do not exist at lower levels of organization |
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| Deoxyribonucleic Acid (DNA) |
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Definition
| Large, double-stranded, helical molecule that contains instructions for assembling a living organism from simplier molecules. |
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| Directs the synthesis of different protein molecules |
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| Carry out most activities of life including synthesis of all other biological molecules |
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| The ability of a cell or organism to extract energy from its surroundings and use that energy to maintain itself, grow, and reproduce. |
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| Electromagnetic energy in sunlight is absorbed and converted into chemical energy. |
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| complex biological molecules are broken down with oxygen, releasing some of their energy content for cellular activity |
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| Other organisms rely on them to produce food |
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| Animals. Directly or indirectly feed on the complex molecules manufactured by plants |
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| Feed on the remains of dead organisms, breaking down complex biological molecules into simpler raw materials, which may be recycled by producers |
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| A steady internal condition maintained by responses that compensate for changes in the external environment |
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| The process by which parents produce offspring |
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| The transmission of DNA from one generation to the next |
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| A series of programmed changes encoded in DNA, through which a fertilized egg divides into many cells that ultimately are transformed into an adult, which is itself capable of reproduction. |
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| The sequential stages through which individuals develop, grow, maintain themselves, and reproduce. |
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| Random changes in the structure, number, or arrangement of DNA molecules |
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| Characteristics that help an organism survive longer or reproduce more under a particular set of environmental conditions. |
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