1 True or False, The Phylum Arthropoda is the most highly diverse Phylum of animals.
2 True or False, Crabs and earthworms are both in the Phylum Arthropoda.
3 True or False, Arthropods have a hard exoskeleton made mostly of chiton.
4 True or False, The circulatory system of arthropods contains many veins and arteries.
5 True or False, Trilobites are an extinct group of arthropods.