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| *are composed of cells reproduce using DNA *grow and develop actively *take in energy from their environment *sense their environment and respond to it *maintain constant internal conditions *Can evolve as groups |
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| Cells are tiny, self-contained units enclosed by a _________ |
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| Single-celled organisms, such as bacteria, can reproduce by... |
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| dividing into two new genetically identical copies of themselves |
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| Maintaining constant internal conditions |
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| Change in groups of organisms over time- not just how those organisms look or act, but change in their genetic material or DNA |
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| consists of all organisms that can interbreed to produce fertile offspring, but that do not, or cannot, breed with other organisms |
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| Groups of organisms within a species hat live and interact with one another. |
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| features that are advantageous in the struggle to survive and reproduce |
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| An explanation that identifies natural causes for the observation. |
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| In science, an idea is elevated to the status of theory only if it is a.... |
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| major idea that explains a wide variety of related phenomena and has been supported by many diferent observations and experiments |
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| Virus: Characteristics of Life that it DOES have... |
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Definition
| Contain DNA, reproduce, and evolve. |
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| Virus: Characteristics of Life that it DOES NOT have |
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| not made up of cells, no homeostasis, reproduction, and energy collection. Also, they don't always pass DNA..some pass RNA |
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| Molecule, Cell, Tissue, Organ, Organ system, Individual, Population, Community, Ecosystem, Biome, Biosphere |
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| specialized, coordinated collections of cells that perform particular funtions in the body |
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| body parts of different tissues that are organized to carry out specialized functions |
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| Groups or organs that work together |
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| Groups of organ systems work together for the benefit of a single __________ |
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| The populations of different species that live and interact with eachother in a particular area |
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| Communities, along with the physical environment they inhabit |
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| Large regions of the world that are defined on land by plants that grow there and in water by the physical characteristics of the environment |
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| All the world's living organisms and the places where they live |
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| In most biological systems on earth, the original source of energy is the _______ |
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