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25 Cards in this Set
- Front
- Back
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Air sacs
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lateral branches of the nasal passages of smaller toothed whales, sources of echolocation sounds
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allantois
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a membrane that stores waste and is used for gas exchange in the embryo
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anadromous
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an animal [such as a salmon] that spends much of it's life at sea and returns t a freshwater stream or lake to spawn
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amnion
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a fluid filled sac in the egg, adds in gas exchange
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amniotic egg
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egg of reptiles, birds, and mammals, containing an embryo that develops within an amniotic membrane
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baleen
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rows of comb-like material that project from the outer edges of the upper jaws of filter-feeder whales
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catadromous
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fishes that migrate from fresh water to spawn in the ocean
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chloride cells
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a specialized gill cell of bony fish that excretes chloride
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chorion
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the outer-most membrane of an egg, adds in regulate gas exchange
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chondrichthyes
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cartliaginious fish
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ectotherms
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an animal whose body temperature is controlled by external heat sources
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endotherms
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an animal whose body temperature is established by internal sources of heat
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homeotherms
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an animal, such as a bird or mammal, that maintains precisely controlled internal body temperatures using its own heating and cooling mechanisms
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guano
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the droppings from seabird nesting colonies
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myomeres
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one of a series of muscle segments along the trunk of vertebrates. especially fish
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nasal glands
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salt-excreting gland in the nostrils of seabirds and reptiles
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nekton
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large, actively swimming marine animals
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notochord
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an elongated, cartilaginous rod that forms the central skeleton support of chordate embryos
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osteichthyes
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boney fish
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oviparous
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a condition that describes the habitat of releasing eggs that later hatch
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spermaceti organ
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a large organ in the forehead of sperm whales that is filled with a fine-quality liquid or waxy spermaceti oil
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swim bladder
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gas gilled buoyancy organ of bony fish
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tertrapods
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four limbed, air-breathing vertebrates, adapted to marine systems such as birds
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uric acid
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the main nitrogenous excretory product in birds, reptiles, some invertebrates, and insects
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viviparous
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a condition describing the act of giving birth to live young
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