| A | B |
|---|
| Taxonomy | Binomial system of classification |
| Monera | All are single-celled prokaryotes |
| Protista | All are eukaryotes |
| Fungi | All are heterotrophic eukaryotes |
| Plants | All are autotrophic eukaryotes |
| Animals | All are heterotrophic, multicellular eukaryotes |
| Porifera | No true tissues; cell layers are loose federation of cells with little specialization |
| Cnidarians | Radial symmetry, body plan is either polyp or medusa, all have stinging cells |
| Arthropods | Jointed appendages; segmented with head, thorax, and abdomen |
| Mammals | Mothers nourish babies with milk from mammary glands; have hair or fur |
| Primates | Dexterous hands with opposite thumbs; nurture young for a long time |
