BISC 132 Lecture Notes - Lecture 8: Arthropod, Reverse Genetics, Echinoderm
14 Oct 2016
School
Department
Course
Professor
Document Summary
Animal characteristics, heterotrophs, multicellular, no cell walls, active movement, sexual reproduction, embryonic development, tissues. Protostomes & dueterostomes: coelom: body cavity within mesoderm, protostome- during development, indentation forms blastopore eventually becomes mouth, deuterostomes- during development, indentation in blastopore eventually becomes anus. Invertebrates: parazoa: includes all animals without specialized tissues. Eumetazoa: animals with specialized tissue: not typical of animals, includes all future groups. Cnidarians: bilaterian flatworms to gfp: bilateral symmetry, tube body plan, acoelomate, complex system of cells, e. g. digestive system, e. g. Nervous system: no brain but centralized ganglion of nerve cells, simple eyespots, distinguish light and dark, e. g. reproductive system, hermaphrodite, no circulatory system, no blood, many are free-living, regenerative xii. Schistome: cause schistosmiasis, chronic illness, especially bad for children, causes damage to internal organs, especially the liver, e. g. Subphylum: crustacea: crabs, shrimps, crawfish, most have gills, few terrestrial crustaceans, pillbugs/ roly pollies xii.
