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chapter 7
| Question | Answer |
|---|---|
| a tiny nonliving partical that invades and then reproduces inside a living cell | virus |
| the organism that a parasite or virus lives in or on | host |
| the organism that benefits by living on or in a host in a parasitism interaction | parasites |
| a virus that infects bacteria | bacteriophage |
| a substance used in a vaccination that consists of weakened or killed pathogens that can triger the immune system into action | vaccine |
| single-celled oraganism that lacks a nucleus | bacteria |
| a long whiplike structure that help a cell to move | flagellum |
| a form of asexual reproduction in witch one cell divides to form two identical cells | binary fission |
| a reproductive process that involves olny one parent and produces offspring that are identical to the parent | asexual reproduction |
| a reproductive process that involves two parents that combine their geneitc material to produce a new organism witch differs from both parents | sexual reproduction |
| the process in witch a unicellular organism transfers some of its genitic material to another unicellular organism | conjugation |
| a small rounded thick-walled resting cell that forms inside a bacteril cell | endospore |
| the process of heating food at a tempprerature that is high enought to kill most harmful bacteria without changing the taste of the food | pasteurization |
| an organism that breaks down chemicals from wastes and dead organisms and returns important materials to the soil and water | decompose |
| a eukaryotic organism that cannot be classified as an animal plant or fungus | protist |
| an animal-like protist | protozoan |
| a falsefoot or temporaroy bulge of cytoplasm used for feeding and movement in some protozoan | pseudopod |
| the cell structure that collects extra water from the cytoplasm and then expels it from the cell | contractile vascole |
| the hairlike projections on the outside of cells that move in a wavelike manner | cilia |
| a close relationship between two organisms of different species that benefits at least one of the organisms | symbiosis |
| a close relationship between organisms of two species in witch both organisms benefit | mutualism |
| plantlike protists | algae |
| a tiny cell that is able to grow into a new organism | spore |
| a eukaryote organism that has cell walls uses spores to reproducce and is a heterotroph that feeds by absorbing its food | fungi |
| the branching therdlike tubes that make up the bodies of multicellular fungi | hyphae |
| the reproductive structure of a fungus that contians many hyphae and produces spores | fruiting body |
| a form of asexual reproduction of yeast in which a new cell grows out of the body of a parent. | budding |
| The combination of a fungis and either an alga or an autographic bacterium that live together in a mutualistic relationship. | lichen |
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hi people
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