PPT-Osteichthyes - Bony fishes

Fish multiple fish that belong to the same species Fishes multiple fish that belong to different species Fish versus Fishes All have At least one bone in their skeleton Scales. These organs are usually paired Female gonads ovaries produce eggs and are usually pink red or orange in colour and are covered in numerous blood vessels Male gonads testes produce sperm and are usually white cream or grey in colour Reproduction The JEOPARDY. How things. work?. Bony Fish. Anatomy. Circulatory. System. Digestive. System. 100. 100. 100. 100. 100. 200. 200. 200. 200. 200. 300. 300. 300. 300. 300. 400. 400. 400. 400. 400. 500. 500. 1. What is a fish?. Aquatic vertebrates that have paired fins, scales, and gills.. Of course there are exceptions . . There are approx. 24,000 living species. 2. Questions. What is the function of fins?. Biology 342. (. Simplified). Phylogey. of Fishes. HAGFISHES:. Living relict group of fishes often considered to be amongst most primitive of vertebrates.. Jawless, poorly developed cranial structures, no ossified vertebral elements.. Characteristics of all Fish. All fish are . aquatic. All fish are . vertebrates. All fish have . gills. All fish have appendages in the form of . fins. Most. fish have skin with . scales. Different Groups of Fishes. Cnidaria. Ctenophora. Rotifera. Nematoda. Nemertea. Mollusca. Annelida. Arthropoda. Bryozoa. Phoronida. Brachiopoda. Echinodermata. Chordata. No true tissues. radial symmetry. diploblastic. true tissues. . The Bony Fish. Class Osteichthyes. Characterized by having:. Bone in their skeleton . An operculum covering the gill openings. A swimbladder or lungs. True scales. Paired fins. Homocercal tail (Exception lungfish – diphycercal). Characteristics of all Fish. All fish are . aquatic. All fish are . vertebrates. All fish have . gills. All fish have appendages in the form of . fins. Most. fish have skin with . scales. Different Groups of Fishes. Scientific Classification-. Class . Osteichthyes. Class . Osteichthyes. includes all bony fishes. . Like all fishes, . Osteichthyes. are cold-blooded vertebrates that breathe through gills and use fins for swimming.. Where does it start?. Part 1. Phylum Chordata. Animal Kingdom. Vertebrates over here. Chordata (animals with notochord at some stage in life cycle). Craniata (euchordates with a cranium) = Vertebrata. Body Divisions. Their body is divided into:. - head . - trunk . - and tail . although the divisions are not always externally visible. . The . caudal peduncle. is the narrow part of the fish's body to which the caudal or tail fin is attached. The . Traditional organization of Vertebrate Taxonomy. AGNATHA -Jawless Fishes. CHONDRICHTHYES -Sharks, skates, rays and chimeras. OSTEICHTHYES -Bony Fishes. AMPHIBIA -Amphibians. REPTILIA -Reptiles. MAMMALIA -Mammals. Page 39, . text. Precambrian. Phylogeny of the Fishes. The first vertebrates to appear in the fossil record occurred in the late Cambrian Period (. ~. 500 mya). These were jawless armored fishes known as . Identify the Frog Parts. esophagus. liver. Gall bladder. pancreas. spleen. kidney. l. arge intestine. bladder. Small intestine. testis. f. at body. stomach. lungs. heart. Frog Body Parts and Functions.