| A | B |
| Ancient, unicellular organisms that live in harsh environments | Archaebacteria |
| Archaebacteria that lives in harsh, salty environments | Halophiles |
| Eubacteria and Archaebacteria have this in their cell walls. | Peptidoglycan |
| the first word in binomial nomenclature | genus |
| Classification level below kingdom | phylum |
| type of Archaebacteria which loves hot, acidic environments | Thermoacidophiles |
| able to make their own food | autotrophs |
| organisms WITH a nucleus | Eukaryotic |
| Mushrooms, athlete’s foot, mold, mildew and yeast | fungi |
| Organisms that can be round, spiral, or rod-shaped and make cheese and yogurt. | Eubacteria |
| Organisms that are not able to make their own food | heterotrophs |
| Organisms that are physically similar and can mate and reproduce | species |
| eukaryotic, multicellular heterotrophs like monkeys | Animals |
| tool with simple 2 part questions to identify mystery organisms | Dichotomous Key |
| Single celled organisms | Unicellular |
| Organisms WITHOUT a nucleus | Prokaryotes |
| Classification group after Order | Family |
| classification group between phylum and order | Class |
| Archaebacteria that lives in cow stomachs | Methanogens |
| classification group between Class and Family | Order |