Virus Host Parasite Vaccine Bacteriophage A tiny non living particle that invades and then reproduces itself inside of a living cell Host The organism that a parasite or virus lives on or in Parasite The organism that benefits by living on or in a host in a parasitic relationship Bacteriophage A virus that infects bacteria Vaccine A substance used in a vaccination that consists of weakened of killed pathogens that can trigger an immune system into action

Bacteria Flagellum Binary Fission Asexual Reproduction Single celled organism that lack a nucleus Flagellum A long whip like structure that helps a cell move Binary Fission A form of asexual reproduction in which one cell divides to form two identical cells Asexual Reproduction A reproductive process that involves only one parent and produces offspring that are identical to the parent Sexual Reproduction A reproductive process that involves two parents that combine their genetic material to produce a new organism that differs form the parents

Conjugation Endospore Decomposer Protist Pasteurization The process in which a unicellular organism transfers some of its genetic material another unicellular organism Endospore A small rounded thick walled resting cell that forms inside of a bacterial cell Pasteurization A process of heating foo to a temperature that is high enough to kill most harmful bacterial without changing the food’s taste Decomposer An organism that breaks down chemicals from wastes and dead organisms returning important materials to soil and water Protist A eukaryotic organism that cannot be classified as a plant animal or fungus

Protozoan Pseudopod Contractile Vacuole Cilia Symbiosis An animal like protist Pseudopod A false foot or temporary bulge of cytoplasm used for feeding and movement in some protozoans Contractile Vacuole The cell structure that collects extra water from the cytoplasm and then expels it from the cell Cilia The hair like projections on the outside of cells that move in a wave like manner Symbiosis A close relationship between two organisms of different species that benefits at least one of the organisms

A tiny cell that is able to grow into a new organism Mutualism A close relationship between organisms of two different species where both organisms benefit Algae Plant like protists Spore A tiny cell that is able to grow into a new organism Fungus A eukaryotic organism that has cell wails, spores to reproduce and is a heterotroph that absorbs its food Hyphae The branching thread like tubes that make up the bodies of multicellular fungi

Fruiting Body Budding Lichen The reproductive structure of a fungus that contains many hyphae and produces spores Budding A form of asexual reproduction of yeast in which a new cell grows out of the body of the parent Lichen The combination of a fungus and either an alga or an autotrophic bacteria that live together in a mutualistic relationship