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Definition
| Submerged opening where hot, mineral-rich water streams out |
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Definition
| Membranous sacs that contain interacting organic molecules |
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Definition
| Hypothetical early interval when RNA served as the material of inheritance |
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Term
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Definition
| One species lives inside another |
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Definition
| Organism that encloses its DNA in a nucleus; a protist, plant, fungus, or animal |
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Definition
| Atmospheric layer with a high concentration of ozone that prevents much UV radiation from reaching earth's surface |
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Definition
| Single-celled organism in which the DNA resides in the cytoplasm; a bacterium or archaean. |
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Definition
| Dome-shaped structures composed of layers or prokaryotic cells and sediments; form in shallow seas |
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Definition
| Of a prokaryote, a small ring of chromosomal DNA with a few genes |
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Definition
| One prokaryotic cell transfers to another |
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Term
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Definition
| Method of asexual reproduction in which one prokaryotic cell divides and forms two identical descendant cells |
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Term
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Definition
| A subgroup within a species that has a characteristic trait or traits |
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Definition
| Prokaryotic domain most closely related to eukaryotes; many members live in extreme enviroments. |
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Definition
| Most diverse prokaryotic domain |
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Definition
| Organism that breaks organic material down into its inorganic subunits |
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Definition
| Organism that lives where the salt concentration is high. |
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Definition
| Organism that lives where the temperature is very high |
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Definition
| Organism that produces methane gas as a metabolic by-product |
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Term
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Definition
| Process of combining nitrogen fas with hydrogen to form ammonia |
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Definition
| Collection of microorganisms that normally live in or on a healthy animal or person |
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Definition
| Organism that infects another organism and causes disease |
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Definition
| Animal that transmits a pathogen between its hosts |
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Term
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Definition
| In freshwater protists, an organelle that collects and expels excess water |
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Definition
| Member of a heterotrophic lineage of protists that have one or more flagella |
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Definition
| Heterotrophic protist that secretes a calcium carbonate shell |
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Definition
| Layer of proteins that gives shape to many unwalled, single-celled protists |
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Definition
| Community of tiny drifting or swimming organisms |
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Term
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Definition
| A eukaryote that is not a fungus, plant, or animal |
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Term
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Definition
| Population explosion or single-celled aquatic organisms such as dinoflagellates |
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Term
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Definition
| Parasitic protist that enters and lives inside the cells of its host |
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Term
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Definition
| Able to use ATP to produce light |
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Term
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Definition
| Single-celled, heterotrophic protist with many cilia |
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Term
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Definition
| Single-celled, aquatic protist typically with cellulose plates and two flagella; may be heterotrophic or photosynthetic |
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Term
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Definition
| Heterotrophic protist that forms a mesh of nutrient-absorbing filaments. |
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