| A | B |
|---|
| bacteria | tiny single-celled organisms that live almost anywhere |
| cytoplasm | the region inside the cell membrane of a bacteria |
| ribosomes | tiny structures that produce proteins inside bacteria |
| flagellum | a whip-like structure that helps a bacteria cell to move |
| cellular respiration | the process of breaking down food to make energy |
| binary fission | a process by which bacteria reproduce sexually |
| conjugation | a process by which bacteria reproduce asexually |
| endospore | a small, rounded, thick-walled resting cell inside a bacterial cell |
| pasteurization | a method of slowing down food spoilage |
| decomposers | organisms that break down large, complex chemicals in dead organisms into small, simple chemicals |
| host | an organism that provides a source of food for a virus or other organism |
| virus | a tiny, non-living particle that enters and reproduces inside a living cell |
| parasite | an organism that lives in or on a host and causes it harm |
| vaccine | a substance introduced in the body to help produce chemicals that destroy specific viruses |
| protist | a eukaryote that can not be classified as an animal, plant or fungi |
| protozoan | protists that are unicellular, animal-like protists |
| algae | protists that are uni- or multicellular plant-like protists |
| fungus-like protists | protists that are heterotrophs, |
| fungus | eukaryotes that have cell walls, are heterotrophs, and use spores to reproduce |
| mushroom | a fruiting body of a fungus |
