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end of term
8th grade science end of term test
| Question | Answer |
|---|---|
| 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 |
| µm micrometer | a millionth of a meter |
Created by:
zinne
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