BIOL 1002 Lecture : BIO Final Notes
Document Summary
Oysters, clams, mussels, and scallops: class cephalopodia- cephalopods. Many animals with bilateral symmetry also have some type of coelom: coelom is a body cavity that is between the digestive system and the body wall. Three possible types of body designs with regard to body cavities: no coelom, pseudocoelom where a cavity is present but is not derived from the mesoderm, trues coelom has a cavity derived from mesoderm. Arthropodes ( phylum arthropoda: 1st groups to show the development of respiratory system are the. This group features four new characteristics: notochord, nerve cord, gill slits, tails. The organism with these (and other features) are the : Chordates pylum chordata: cephalization, segmentation (reduced but present, closed circulatory system, excretory system, well-developed nervous system, includes groups with, no skeleton- invertebrates (lancelet and tunicate, primitive cartlige skeleton jawless fish (hagfish and. Lanpreys: cartlige skeleton- cartilaginous fish (sand sharks and ray, bony skeleton- bony fish, amphibians, reptiles, birds, mammals, marsupials, and monotremes.
