all about arthropods
Arthropod Lab - PAP Biology 4th period Guzman
objectives
Background information and anatomy
The crayfish, or the Cambarus robustus (class crustacea) and the grasshopper, or the Melanoplus differentialis (class insecta), are two examples of arthropods. Organisms in the phylum arthropoda have segmented bodies consisting of a head, a thorax, and an abdomen. Arthropods have jointed legs and antennae and have bilateral symmetry. They poses an exoskeleton of chitinous exoskeleton that is shed during growth. The nervous system is dorsal (the underside) and the circulatory system is open and ventral. Insecta characteristics include wings, seperate sexes, 2 antennae, 2 leg pairs. Crustacea traits include a telson, 6 antennae, 5 leg pairs, no wings and chela.
Integumentary system
habitat
woods or local pastures as well as lakes, bay heads, season ponds, and ocean floors.