BIOL 1202 : 1202 EXAM 4 MATERIAL
Document Summary
Live in both fresh and marine waters: asymmetrical body. Light-sensitive eyespots: figure 33. 10, class trematoda, blood fluke, schistosoma mansoni, life cycle, figure 33. 11, tapeworms, class cestoda, scolex attaches to the host, proglottids are the reproductive structures, break off after fertilization, figure 33. 12. Insects and their relatives: more species rich than all other animals, figure 33. 38. Insects are characterized by having 3 pairs of walking legs on the thorax: 1 or 2 pairs of wings, 3 body regions, figure 33. 35, metabolic wastes are removed from hemolymph by malpighian tubules. Tube feet are used for locomotion, capturing prey, and attaching to substrates: water vascular system consists of ring canal and radial canals, echinoderm diversity, figures 33. 40, 33. 47, summary of animal phylum, table 33. 7. Jaws: evolved from skeletal supports of the pharyngeal slits, enhanced sensory system, including lateral line system, mineralized endoskeleton, paired appendages, figure 34. 13, chondrichthyans (sharks, rays, & their relatives, class chondrichthyes.
