EVERYDAY SCIENCE

Detailed explanation-1: -All arthropods posses an exoskeleton, bi-lateral symmetry, jointed appendages, segmented bodies, and specialized appendages. The major arthropod classes can be separated by comparing their number of body regions, legs, and antennae. Class Crustacea (crus-ta-ce-uh), the crustaceans. This is a very diverse class.

Detailed explanation-2: -The phylum Arthropoda contains a wide diversity of animals with hard exoskeletons and jointed appendages. Many familiar species belong to the phylum Arthropoda-insects, spiders, scorpions, centipedes, and millipedes on land; crabs, crayfish, shrimp, lobsters, and barnacles in water (Fig.

Detailed explanation-3: -All arthropods have a hard exoskeleton made of chiton, a type of protein. This shell provides protection for the animals, and gives support for the attachment of the arthropod’s muscles. Although arthropods grow, their exoskeletons do not grow with them.

Detailed explanation-4: -All arthropods have jointed legs, claws, and body segments! Arthropods have segmented bodies. Each body segment usually has a pair of appendages. The appendages can be antennae, wings, legs, or mouthparts!

Detailed explanation-5: -All arthropods (arthro = joint, pod = foot) have jointed limbs. In most of the leg, the exoskeleton is hard, but at the joints it is softer and bendable, allowing movement in the same way that a suit of armor does.