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Science 8 Chapter 2
| Question | Answer |
|---|---|
| host | organism that provides energy for virus or another organism |
| parasite | organism that lives on or in a host and cause harm |
| vaccine | substance introduced in body to help produce chemicals that destroy specific viruses |
| bacteria | single celled, prokaryotes |
| cytoplasm | gel-like fluid that moves structures throughout the cell |
| ribosomes | produce proteins |
| flagellum | long, whiplike struture that helps cell move |
| cellular respiration | process of breaking down food to release energy |
| binary fission | one cell divides to form two identical cells |
| conjugation | form of sexual reproduction, unicellular organism transfer some genetic material to another unicellular organism |
| endospore | small, rounded, thick-walled resting cell that forms inside bacterial cell |
| pasteurization | food heated to temperature high enough to kill most harmful bacteria without changing taste of food |
| decomposers | organisms that break down large, complex chemicals in dead organisms into small, simple chemicals |
| fungus | eukaryotes, cell wall, heterotrophs, spores to reproduce |
| hyphae | branching, threadlike tubes that make up bodies of mutlicellular fungi |
| fruiting bodies | produce spores in fungi |
| lichen | consists of fungus and algae that live together benefiting both |
| budding | form of asexual reproduction, new organisms grows from body of parent |
| protist | eukaryote, not classified as plant, animal or fungi |
| protozoans | animal-like protists |
| pseudopod | "false foot", temporary bulge of cell |
| contractile vacuole | collects and expels excess water from cell |
| cilia | hairlike projections that move organism |
| algae | plant-like protist |
| pigment | chemicals that produce color |
| spore | tiny cell that can grow into new organism |