Chelsea is researching an organism. Her organism has jointed limbs and an exoskeleton. It also obtains air through air tubes. Chelsea’s organism is classified as a/an — OPTIONS: amphibian echinoderm mollusk arthropod
Arthropods have an exoskeleton & jointed limbs. Insects and some other land arthropods breathe through a system of tiny body tubes called tracheae. Some examples of arthropods are a spider or a scorpion.
