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47 Cards in this Set
- Front
- Back
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Atom |
Fundamental building block of all matter |
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Biology |
The scientific study of life |
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Biosphere |
All regions of earth where organisms live |
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Cell |
Smallest unit of life |
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Community |
All populations of all species in a given area |
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Ecosystem |
A community interacting with its environment |
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Molecule |
Two or more atoms bonded together |
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Organism |
Individual that consists of one or more cells |
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Population |
Group of interbreeding individuals of the same species that live in a given area |
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Consumer |
Organism that gets energy and nutrients by feeding on the tissues, wastes, or remains of other organisms |
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Development |
Multistep process by which the first cell of a new multicelled organism gives rise to an adult |
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DNA |
Deoxyribonucleic acid; carries hereditary information that guides development and other activities |
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Growth |
In multicelled species, an increase in the number, size, and volume of cells |
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Homeostasis |
Process in which an organism keeps its internal conditions within tolerable ranges by sensing and responding to change |
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Inheritance |
Transmission of DNA to offspring |
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Nutrient |
Substance that an organism needs for growth and survival but cannot make for itself |
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Photosynthesis |
Process by which a producer uses light energy to make sugars from carbon dioxide and water |
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Producer |
Organism that makes its own food using energy and nonbiological raw materials from the environment |
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Reproduction |
Process by which parents produce offspring |
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Animal |
Multicelled consumer that develops through a series of stages and moves about during part or all of its life |
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Archaea |
Group of single-celled organisms that lack a nucleus but are more closely related to eukaryotes than to bacteria |
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Bacteria |
The most diverse and well-known group of single-celled organisms that lack a nucleus |
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Biodiversity |
Scope of variation among living organisms |
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Eukaryote |
Organism whose cells characteristically have a nucleus |
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Fungus |
Single-celled or multicelled eukaryotic consumer that breaks down material outside itself, then absorbs nutrients released from the breakdown |
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Plant |
A multicelled, typically photosynthetic producer |
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Prokaryote |
Single-celled organism with no nucleus |
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Protists |
A group of diverse, simple eukaryotes |
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Species |
Unique type of organism |
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Taxonomy |
Practice of naming and classifying species |
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Genus |
A group of species that share a unique set of traits |
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Taxon |
Group of organisms that share a unique set of traits |
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Control group |
Group of individuals identical to an experimental group except for the independent variable under investigation |
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Critical thinking |
Evaluating information before accepting it |
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Data |
Experimental results |
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Experiment |
A test designed to support or falsify a prediction |
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Data |
Experimental results |
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Experiment |
A test designed to support or falsify a prediction |
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Experimental group |
In an experiment, a group of individuals who have a certain characteristic or receive a certain treatment |
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Hypothesis |
Testable explanation of a natural phenomenon |
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Model |
Analogous system used for testing hypotheses |
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Prediction |
Statement, based on a hypothesis, about a condition that should exist if the hypothesis is correct |
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Science |
Systematic study of the observable world |
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Scientific method |
Making, testing, and evaluating hypotheses |
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Variable |
In an experiment, a characteristic or an event that differs among individuals or over time |
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Law of nature |
Generalization that describes a consistent natural phenomenon for which there is incomplete scientific explanation |
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Scientific theory |
Hypothesis that has not been disproven after many years of rigorous testing |
