| A | B |
|---|
| virus | a small nonliving particle that invades and then reproduces inside a living cell |
| the two parts of a virus | protien coat and nucleic acid |
| host | a living organism that provides a source of energy for a virus or parasite |
| parasite | an organism that lives in or on a host, causing harm to the host |
| shapes of bacteria | rod, sphere, spiral |
| flagellum | long,whiplike structure that helps a cell to move |
| binary fission | a cell divides to form 2 identical cells |
| asexual reproduction | involves only parent;offspring are identical to parent |
| sexual reproduction | genetic material is combined from 2 sex cells to create offspring which are not genetically identical to parents |
| endospore | small round thick-walled resting cell that forms inside a bacteria cell |
| decomposer | organism that beaks down large chemicals in dead organims into small chemicals |
