24. fishes
DESCRIPTION
Zoology: Chapter 24 FishesTRANSCRIPT
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Fishes
Chapter 24
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Diversity
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Fossils of Early Vertebrates
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Fossils of Early Vertebrates
Placoderms
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Fossils of Early Vertebrates
Acanthodians
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Fossils of Early Vertebrates
cartilaginous fishes: Class Chondrichthyes
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Fossils of Early Vertebrates
bony fishes
ray & lobe
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Agnathans
class Myxini,
the hagfishes
class Petromyzontida, the lampreys.
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Class Myxini - Hagfish
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Class Myxini - Hagfish
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Class Myxini - Hagfish
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Class Petromyzontida - Lampreys
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Class Petromyzontida - Lampreys
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Class Petromyzontida - Lampreys
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Class Petromyzontida - Lampreys
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Derived Characters of Gnathostomes
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Fossil Gnathostomes
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Fossil Gnathostomes
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Class Chondrichthyes
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Subclass Elasmobranchii
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Subclass Elasmobranchii
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Subclass Elasmobranchii
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Subclass Elasmobranchii–
Acute Senses
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Subclass Elasmobranchii
“mermaid’s purse”
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Subclass Elasmobranchii
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Subclass Elasmobranchii
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Subclass Elasmobranchii
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Subclass Elasmobranchii
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Subclass Holocephali
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Osteichthyes
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Class Actinopterygii
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Class Actinopterygii
Two main groups of ray-finned fishes. Chondrosteans
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Class Actinopterygii
Neopterygians
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Class Actinopterygii
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Teleosts
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Teleosts
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Teleosts
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Class Sarcopterygii
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Class Sarcopterygii
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Class Sarcopterygii
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Locomotion in Water
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Locomotion in Water
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Buoyancy
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Buoyancy
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Buoyancy
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Buoyancy: Physostomous fishes
1st method
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Buoyancy: Physoclistous fishes
2nd Method
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Hearing: Weberian ossicles
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Respiration
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Osmotic Regulation
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Feeding Behavior
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Feeding Behavior
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Migration
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Migration
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Reproduction
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Reproduction
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Growth
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Growth
French Angelfishes (Pomacanthus paru) juvenile (left) and adult (right).
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Growth