(CaCO3) shell structure) for feeding Insects and Hard exoskeleton made of Arthropoda crustaceans/mouth and chitin/bilateral symmetry/ anus/have head, thorax segmented bodies and abdomen with jointed appendages Chordata All the vertebrates Have a nerve cord and a few lying above the (such as notochord and have a the tunicates - sea series of pharyngeal squirts) groups, slits that open up have a mouth and an between the mouth and anus and have a esophagus dorsal strengthening structure called a notochord for at least some stage of their lives. **Please note that Chordata has a sub-phylum called vertebrata (have a vertebral column) ** - Application: Recognition of features of birds, mammals, amphibians, reptiles and fish. β Birds Mammals Amphibians Reptiles Fish (aves) (Mammalia) (Amphibia) (Reptilia) (Osteichthyes) Skin Skin has Moist skin, Impermeable Scales made covered in follicles with permeable to skin covered out of bony plates feathers hair made out water in scales of in the made out of Keratin keratin skin of Keratin Lungs Gills covered by an operculum ventilated Lungs with Lungs with Simple lungs using air alveoli, extensive and moist skin sacs, with ventilated with folding for gas ribs and a (increase exchange diaphragm SA) tubes Pentadactyl Limbs No limbs Two wings Four legs for Adults have Four legs in Fins and two many, some four legs most species legs have two (some have arms/wings none) and two legs
(CaCO3) shell structure) for feeding Arthropoda Insects and crustaceans/mouth and anus/have head, thorax and abdomen Hard exoskeleton made of chitin/bilateral symmetry/ segmented bodies with jointed appendages Chordata All the vertebrates and a few (such as the tunicates - sea squirts) groups, have a mouth and an anus and have a dorsal strengthening structure called a notochord for at least some stage of their lives. Have a nerve cord lying above the notochord and have a series of pharyngeal slits that open up between the mouth and esophagus **Please note that Chordata has a sub-phylum called vertebrata (have a vertebral column) ** β - Application: Recognition of features of birds, mammals, amphibians, reptiles and fish. Birds (aves) Mammals (Mammalia) Amphibians (Amphibia) Reptiles (Reptilia) Fish (Osteichthyes) Skin covered in feathers made out of Keratin Skin has follicles with hair made out of Keratin Moist skin, permeable to water Impermeable skin covered in scales of keratin Scales made out of bony plates in the skin Lungs ventilated using air sacs, with tubes Lungs with alveoli, ventilated with ribs and a diaphragm Simple lungs and moist skin for gas exchange Lungs with extensive folding (increase SA) Gills covered by an operculum Pentadactyl Limbs No limbs Two wings and two legs Four legs for many, some have two arms/wings and two legs Adults have four legs Four legs in most species (some have none) Fins
5.3-notes-master.docx