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16 Cards in this Set
- Front
- Back
Cell |
The smallest unit of life that displays all the properties if life; composed of cytoplasm surrounded by a plasma membrane. |
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Tissue |
Group of similar cells combined to perform a common function. |
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Organ |
Combination of two or more different tissues performing a common function. |
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Organ system |
Group of related organs working together; ex: are the digestive and endocrine systems. |
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Organism |
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Population |
Any environmental change that adversely affects the lives and health of living things. |
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Community |
Assemblage of species interacting with one another within the same environment. |
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Ecosystem |
Biological community together with the associated abiotic environment. |
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Bioshpere |
Zone of air, land,and water at the surface of the Earth in which living organisms are found. |
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Energy |
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Metabolism |
The sum of the chemical reactions that occur in the cell. |
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Photosynthesis |
Process, usually occurring within chloroplasts, that uses solar energy to reduce carbon dioxide to carbohydrate. |
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Homeostasis |
Maintenance of normal internal conditions in a cell or an organism by means of self-regulating mechanisms. |
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Hypothesis |
Supposition established by reasoning after consideration of available evidence; it can be tested by obtaining more data, often by examination. |
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Theory |
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Principle (law) |
Theory that is generally accepted by an overwhelming number of scientists; also called law. |