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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.

Tissue

Group of similar cells combined to perform a common function.

Organ

Combination of two or more different tissues performing a common function.

Organ system

Group of related organs working together; ex: are the digestive and endocrine systems.

Organism

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Population

Any environmental change that adversely affects the lives and health of living things.

Community

Assemblage of species interacting with one another within the same environment.

Ecosystem

Biological community together with the associated abiotic environment.

Bioshpere

Zone of air, land,and water at the surface of the Earth in which living organisms are found.

Energy

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Metabolism

The sum of the chemical reactions that occur in the cell.

Photosynthesis

Process, usually occurring within chloroplasts, that uses solar energy to reduce carbon dioxide to carbohydrate.

Homeostasis

Maintenance of normal internal conditions in a cell or an organism by means of self-regulating mechanisms.

Hypothesis

Supposition established by reasoning after consideration of available evidence; it can be tested by obtaining more data, often by examination.

Theory

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Principle (law)

Theory that is generally accepted by an overwhelming number of scientists; also called law.