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22 Cards in this Set
- Front
- Back
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What is an ectotherm?
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An animal whose body temperature changes with the climate.
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What is a nerve cord?
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A structure that later deveops a brain at one end.
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What is a fin?
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Paired openings in the throat behind the mouth.
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What is a notochord?
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A structure that becomes the backbone.
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What is an endotherm?
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An animal whose body temperature stays the same in all climates.
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What is cartilage?
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A tough, flexible tissue in the tips of human noses.
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What is hibernation?
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A period of inactivity in the winter.
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What is a fin?
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A fanlike structure fish use for steering, balance, and movement.
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What is an amniotic egg?
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A structure in which a reptile embryo develops.
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What is estivation?
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A period of inactivity in the summer.
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What are scales?
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Hard, thin plates that covers the body of a fish.
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What structures are part of the endoskeleton in invertebrates?
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The skull and vertebrae
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What does the lateral line do?
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Enables a fish to detect movement.
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What are traits of all chordates?
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notocord, nerve cord, pharyngeal pouches, postanal tail.
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What are amphibians?
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Ectotherms that spend time in water and on land, but lay their eggs in water.
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What are nostrils?
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Structures located on top of the head of frogs that allow them to breathe while nearly submerged in water.
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What are reptiles?
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Ectotherms with dry, scaley skin that lay amniotic eggs.
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How do turtles breathe?
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With their lungs.
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Why are amphibians' considered biological indicators?
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Because their overall health reflects the health or their ecosystem.
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What are the characteristics of amphibians?
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moist, thin skin and lungs, strong skeleton, all hibernate, lay eggs in water
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What are characteristics of reptiles?
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lungs, strong skeleton, some hibernate, lay amniotic eggs on land.
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Be able to compare and contrast amphibians and reptiles.
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Be able to label a diagram of the frog including artery, lungs, heart, liver, gall bladder, esophagus, vein, stomach, pancreas, small intestine, cloaca, large intestine.
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