Exoskeletons Oh My!
Cracking the Shell
Taxonomy of Arthropods
Arthropods have many sub-phylum.
Arthropods are inverterbrates with segmented bodies and jointed limbs. The limbs form part of an exoskeleton, which is mainly made of α-chitin, a derivative of glucose. One other group of animals, the tetrapods, has jointed limbs, but tetra-pods are vertebrates and therefore have endoskeletons.
Facts, You'll Be Glad You Know
|2| Go through metamorphosis
|3| Arthropods evolved about 500 million years ago
|4| There are more than 30 million species of arthropods