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chapter 7 science vo


virus a tiny nonliving particle that invades and then reproduces inside a living cell
host is a living thing that provides a source of energy for a virus or an organism
parasite organisms that lives on or in a host and causes it harm
bacteriophage viruses that infects bacteria
vaccine a substance introduced into the body to simulate the production of chemicals that destroys specific diasese causing viruses and orgamisms
bacteria are prokaryotes. The material in their cells is not contained in a nucleus. single celled
flagellum a long whiplike structure that helps a cell to move
binary fission in which one cell divides to form two identical cells
asexual reproduction 2 parents combine their material to produce a new organism
conjugation one bacterium transfers some genetic material to another bacterium through a threadlike bridge
endspore a small rounded thick-walled resting cells that form inside a bacterial cell
pasteurization food is heated to a temp that is high enough to kill most harmful bacteria without changing the taste
decomposer organisms that break down into large chemicals in dead organisms into small chemicals
protist eukaryotes. that cannot be classified as animals, plants, or fungi
protozoan unicellular can be classified into 4 different groups based on the wat they move
pesudopod false foot. form when cytoplasm flows toward 1 location and the rest of the organisms follows
contractile valcuole a structure that collects the extra water and then expels it from the cell
cilia hairlike projections from cells that move with a wavelike motion
symbiosis a close relationship in which at least 1 of the species benefit
mutualism close relationship between organisms of 2 species in which both organisms benefit
algae extremly diverse and are autotrophs
spore a tiny cell that is able to grow into new oganisms
fungi eukaryotoes that have cell walls are hetotrophs that feed by absorbing food and use spores to reproduce
hyphae threadlike tubes that make up bodies of multicellular fungi
budding unicellular yeast cells undergo a form of asexual reproduction
Created by: caitlin97