| A | B |
|---|
| Moneran | one-celled organism that does not have a nucleus enclosed by a membrane |
| Host | A living organism on which other organisms live and feed on |
| Parasite | An organism that harms the host on which it feeds |
| Aerobe | An organism that needs oxygen to live and undergoes respiration |
| Anaerobe | Organism that does not need oxygen to live and obtain the energy in food through fermentation |
| Fission | Asexual reproduction where a one-celled organism split into two cells |
| Decomposer | Organism that breaks down complex substances into simpler subtances |
| Eukaryote | Organisms with nucleus |
| Prokaryote | Single-celled organism without a nucleus |
| Virus | A tiny particle that has characteristics of nonliving things but has DNA or RNA |
