| A | B |
|---|
| binary fission | reproduction in which a single-celled organism splits into two single-celled organisms |
| methane maker | a type of archaebacteria that lives in swamps and animal intestines |
| flagella | hairlike parts of bacteria that help them move around |
| endospore | a thick-walled spore containing genetic material and protiens that forms inside a bacterial cell |
| eukaryote | an organism with a nucleus |
| eubacteria | the most common kind of bacteria |
| prokaryote | single-celled organism with no nucleus |
| cynobacteria | bacteria that contain the green pigment chlorophyll |
| archaebacteria | bacteria that often live in harsh environments |
| heat lover | a type of archaebacteria that lives in ocean vents and hot springs |
| bioremediation | the use of microorganisms to treat hazardous waste |
| nitrogen fixation | the process in which bacteria change nitrogen in the air into a form that plants can use |
| pathogenic bacteria | bacteria that causes disease |
| lactose | the sugar in milk |
| antibiotic | medicine used to treat many bacterial diseases |
| genetic engineering | changes in the genes of bacteria or other living things |
| virus | a microscopic particle that gets inside a cell and often destroys it |
| lysogenic cycle | a cycle in which a virus's genes live in a host but are inactive |
| protein coat | the substance that protects a virus's genetic material and helps it get inside a cell |
| vaccination | a way to prevent viral infections |
| lytic cycle | a cycle in which a virus attacks a host and causes it to make viruses |
| oxygen | something viruses cannot use |
| shape | one way viruses are grouped |
| antibiotics | medicine that does not kill viruses |
| host | a living thing that a virus or parasite lives on or in |
| antiviral | a type of medicine that keeps viruses from reproducing |
