| A | B |
| tiny bubble-like structure of water and proteins that is somewhat like a cellular membrane | microspheres |
| the time it takes for half the atoms in a sample to undergo radioactice decay | half-life |
| the fossilized remains of layered mats of prokaryotic cells and sediments | Stromatolites |
| An hypothesis stating the ancestors of mitochondria and chloroplasts were independent aerobic prokaryotes that were engulfed by larger cells | Endosymbiosis |
| The history of life, divided into long strands of time | eras |
| Eras aer subdivided into what? | periods |
| Periods are divided into what? | Epochs |
| the movement of Earthscrustal plates over its molten core | Plate tectonics |
| This hypothesis stated the eukaryotic organelles developed when the cell membrane folded in and created compartments | infolding hypothesis |
| Chains of monomers or small organic molecules | Polymers |