1. What are some examples of arthropods?

2. What are the classes into which the phylum Arthropoda is divided? What are the three main classes and some of their representative species?

3. What are the main morphological features of arthropods?

4. In terms of germ layers and the presence of a coelom, how can arthropods be described?

5. Considering the presence of segmentation (metameres) in their body, which previously studied phylum resembles arthropods?