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end of term

8th grade science end of term test

cell basic unit of structure and function in all living things
unicellular single celled organisms
multicellular organisms composed of many cells
organism living thing
autotrophs organisms that can create their own food
heterotrophs organisms that cannor make their own food
homeostasis the maintenence of stable internal conditions
taxonomy the scientific study of how living things are classified
binomial nomenclature naming organisms by putting them in groups based on their observable features; based on observations, then give each organism a unique two part scientific name(Linnaeus)
evolution a process by which species gradually change over time
list the levels of classification from greatest to least (domain?),Kingdom, Phylum, Class, Order, Family, Genus, Species
virus a tiny, nonliving particle that enters and then reproduces inside a living cell
host an organism that provides a source of energy for a virus or another organism
parasite an organism that lives in or on a host and causes it harm
bacteriophage a virus that infects bacteria
bacteria single celled organism
respiration the process of breaking down food to release its energy
binary fission one cell divides to form two identical cells
asexual reproduction reproductive process that involves only one parent and produces offspring that are identical to the parent
sexual reproduction involves two parents who combine their genetic material to produce a new organism which differs from both parents
conjugation a process in which one bacterium transfers some genetic material to another bacterium through a thin threadlike bridge that joins the two cells
endospore small rounded thick walled resting cell that forms inside a bacterial cell (survive in harsh conditions)
prokaryote organism whose cells lack nucleus
eukaryote organism with cells that contain nuclei
nucleus a dense area in a cell that contains nucleic acids
infectious disease an illness that passes from one organism to another
antibiotic resistance results when some bacteria are able to survive in the presence of an antibiotic
cilia the hairlike projections on the outside of cells that move in a wavelike manner
flagellum whiplike things coming off of bacteria that it uses to move
algae plant like protists
protist a eukaryotic organism that cannot be classified as an animal, plant, or fungus
protozoan an animallike protist
pseudopod a false foot or temporary bulge of cytoplasm used for feeding and movement in some protozoans
symbiosis a close relationship between two organisms in which at least one of the organisms benefits
Algal bloom the rapid growth of a population of algae
hyphae the branching, threadlike tubes that make up the bodies of multicellular fungi
fruiting body fungi produced spores in reproductive structures
budding a form of asexual reproduction undergone by unicellular yeast cells
fungi eukaryotes that have cell walls, are heterotrophs that feed by absorbing their food, and use spores to reproduce
┬Ám micrometer a millionth of a meter
Created by: zinne