| Symmetry |
Radial Symmetry |
Example: Jellyfish |
|
Bilateral Symmetry |
Example: Butterfly |
| Levels of Organization |
Cellular Level |
Example: Sponges |
|
Tissue Level |
Example: Cnidarians (e.g., corals) |
|
Organ Level |
Example: Earthworm |
|
Organ System Level |
Example: Humans (e.g., circulatory system) |
| Germ Layers |
Diploblastic Organization (2 layers) |
Example: Cnidarians (e.g., jellyfish) |
|
Triploblastic Organization (3 layers) |
Example: Vertebrates (e.g., fish, birds) |
| Presence of Notochord |
Chordates have a notochord during |
Example: Vertebrates (e.g., fish, humans) |
|
embryonic development |
|
| Behavior |
Behavioral traits are used for |
Example: Migration in birds |
|
classification |
|
| Habitat |
Animals are classified based on their |
Example: Aquatic animals vs. terrestrial |
|
ecological habitats |
animals |
