1. Complete Table A to organize the information that you have learned in this lesson. You will use this table to classify the organisms.

| Phylum | Body Symmetry | Segmentation | Nervous System | Digestive System | Respiratory System | Reproduction |

|-------------|---------------|--------------|----------------|------------------|--------------------|------------------|
| Arthropoda | Bilateral | Segmented | Ventral nerve | Complete | Tracheal system | Sexual |
| Chordata | Bilateral | Segmented | Dorsal nerve | Complete | Lungs/gills | Sexual |
| Mollusca | Bilateral | Unsegmented | Ventral nerve | Complete | Gills | Sexual/hermaphro |
| Annelida | Bilateral | Segmented | Ventral nerve | Complete | Skin diffusion | Sexual |
| Echinodermata| Radial | Unsegmented | Nerve net | Complete | Skin gills | Sexual |