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Published byJuan McCarthy
Modified over 4 years ago
CIRCULATION COLD BLOODED; Poikilothermic 2 CHAMBERED HEARTRED SWIMMING MUSCLE IN TUNA AND PELAGIC SPECIES Warmer than body temp. Myoglobin Oxygen storage
FOOD GETTING FILTER FEEDERS; USE GILL RAKERS,examples; Herring, Anchovies
VARIOUS SPECIALIZED TEETHSHEEPHEAD; crushing teeth QUEEN TRIGGER; urchin eater Parrotfish; Parrot-like beak, coral eater BARRCUDA; needle-like teeth PERCH; small teeth
Other feeding styles; “Slurp-gun” technique; ex. Sea horse
SCALES FUNCTION; STREAMLINING, slippery mucous coveringPROTECTION; physical harm and parasites osmotic balance balance of water and salts
VARIATIONS IN SCALES SCALES ABSENT IN MORRAY EELSCALES FUSED IN THE SEA HORSE TO FORM A HARD OUTER COVERING.
KIDNEY FUNCTION REMOVAL OF NITROGENOUS WASTE (ammonia, urea etc.)MAINTENANCE OF OSMOTIC BALANCE
FRESH WATER FISH EXCRETES LOTS OF WATER WELL DEVELOPED KIDNEYSALT WATER FISH DRINKS LOTS OF WATER EXCRETES LITTLE WATER EXCRETES EXCESS SALT (KIDNEYS AND GILLS)
REPRODUCTION OVIPAROUS; eggs fertilized outside the body, development external. Examples and variations; Nest builders= stickleback Mouth Breeders= Jawfish
OVIPAROUS (Contd.) Eggs adrift in the plankton= pelagic species (swordfish) Eggs laid on shore (beach)= Grunion
OVOVIVIPAROUS; Fertilization internal. Development internal.Young are born ‘alive’. Example= Perch
PHYLUM CHORDATA Dorsal Notochord-long rod that supports the body-becomes the vertebrae in most. Dorsal Nerve cord-becomes the central nervous system. Pharyngeal.
RESPIRATION n STRUCTURES; arch, filaments, rakers n WATER FLOW- in mouth & out operculum (gill cover) n COUNTER CURRENT SYSTEM FOR EFFICIENT OXYGEN UPTAKE.
FISH HOLT CH. 30 PG
Agnatha Chondrichthyes Osteichthyes
Phylum Chordata. What Is A Chordate? 4 characteristics present at some stage of life 1.A dorsal, hollow nerve cord (called spinal cord in vertebrates)
Copyright Pearson Prentice Hall
Chapter 34 Notes Vertebrate Evolution and Diversity.
Mammals Have hair Ability to nourish their young with milk Breathe air 4-chambered heart Endotherms.
Phylum Chordata, subphylum Vertebrata Share the 4 chordate characters with lancelets and sea squirts Backbone, vertebral column, spine –Series of hollow.
Respiratory System: Purpose: - exchange O 2 and CO 2 between an organism and its environment -fish use their mouths to breath and not nostrils.
Superclass Osteichthyes bony fishes Class Actinopterygii Ray finned fishes Class Sarcopterygii (lobe fin fishes) Lung fishes Coelocanth.
Fishes Chapter 11 Section 2. Characteristics of Fishes Vertebrate Lives in the water Uses fins to move Ectotherms Obtain oxygen through gills.
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