| Terms |
Definitions |
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protozoan
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animal-like protists
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unicellular
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single-celled organisms (bacteria)
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micrometer
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millionth of a meter
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class
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In classification, the taxonomic category above order.
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binomial nomenclature
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the two-part naming systemgenus
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endospore
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thick-walled structures; can exist for hundreds of years before they resume growth
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prokaryote
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organisms whose cells lack a nucleus
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decomposers
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organisms that break down large molecules in dead organisms into smaller ones
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Homeostasis
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the maintenance of stable internal conditions
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sexual reproduction
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(this occurs when conditions are unfavorable to fungi) hyphae or 2 fungi grow together and genetic material is exchanged
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the scientific study of how living things are classified is called
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taxonomy
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metabolism
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substances are broken down to form energy
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decomposer
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an organism that breaks down chemicals from wastes and dead organisms, and returns important materials to the soil and water
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domain eukarya
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organisms with cells that contain nucle
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Cell
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the basic unit of structure and function in an organism p7
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flagellum
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a long, whiplike structure that helps a unicellular organism move
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symbiosis
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-a close relationship in which at least one of the species benefits (ex. p.78)
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chlorophyll
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a green pigment found in the chloroplasts of plants, algae, and some bacteria
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spontaneous generation
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The mistaken idea that living things arise from nonliving sources.
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photosyntesis
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the process by which plants and some other organisms capture and use light energy to make food from carbon dioxide and water
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host
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a living thing that provides a source of energy for a virus or an organism
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Species
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a group of similar organisms that can mate with each other and produce offspring that can also mate and reproduce p18
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Organism
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a living thing that has (or can develop) the ability to act or function independently
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reflection
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the process by which light bounces off an object
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eutrophication
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the build up over time of nutrients in freshwater lakes and ponds that leads to an increase in the growth of algae
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list the 6 kingdoms of living things
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archaebacteria, eubacteria, protists, fungi, plants, animals
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Parasite
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an organism that lives on or in a host and causes it harm
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what is salt water algae bloom?
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It is called red tides. It is called red because it has red pigment in it. Because the algae reproduces so quickly there is so much of it that it makes the ocean water look red
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