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25 Cards in this Set
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Term for an animal that gains heat through the environment |
Ectotherm |
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Freshwater fish produce large amounts of this type of urine to overcome the large amounts of water that enter their bodies through osmosis |
Dilute |
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This term refers to fish that spend their adult lives at sea but returned to freshwater to spawn |
Anadromous |
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Another term for nekton; refers to animals that spends their time swimming through ocean waters |
Pelagic |
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System of jelly filled canals that allows fish to since vibrations in water |
Lateral line system |
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Name for the group of jawed vertebrates |
gnathostomata |
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Like leeches, Lampreys secrete this into their hosts to promote bloodflow and help prevent blood clotting |
Anticoagulant |
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Substance produced by hagfish from special glands that line the body |
Slime |
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Name of the super class containing all jawless fish |
Agnatha |
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A group of extinct armored fish |
Placoderms |
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Body shape of a fish; allows them to move rapidly in water |
Streamlined |
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Receptor organs which make up the lateral line system |
Neuromasts |
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Colorful, venomous fish species that has invaded the Atlantic |
Lion fish |
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Modified pelvic fins on male cartilaginous fish |
Claspers |
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Marine fish are this type of regulator because their tissues are less salty than their surroundings |
Apousmatic |
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Bony fish use this gas-filled organ for buoyancy |
Swim bladder |
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The egg laying behavior of fish |
Spawning |
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Refers to bottom-dwelling animals that spend their time at the bottom surface of the ocean |
Benthic |
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Fe |
Vivaporous |
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Openings behind the eyes of rays used to bring in water for respiration |
Spiracles |
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Refers to animals whose body temperature adjusts depending on the external environment (adj.) |
Poikilothermic |
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Hard plate that covers the gills of bony fish |
Operculum |
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Term for organisms in which the babies develop from an egg inside the mother and are later born |
Ovovivaporous |
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Fish are member of this subphylum |
Verbrata |
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Body shape of a shark; designed to refuse water resistance |
Fusiform |
