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20 Cards in this Set
- Front
- Back
chordate
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The phylum whose members have a notochord, a nerve cord, and slits in their throat area at some point in their lives.
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vertebra
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The bones that make up the backbone of an animal
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notochord
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A flexible rod that supports a chordate's back
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ectotherm
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An animal whose body does not produce much internal heat.
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cartilage
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A connective tissue that is more flexible than bone and that gives support to some parts of the body
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endotherm
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An animal whose body controls and regulates its temperature by controllin ght einternal heat it produces
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cartilage
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A connective tissue that is more flexible than bone and that gives support to some parts of the body
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endotherm
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An animal whose body controls and regulates its temperature by controlling the internal heat it produces.
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fish
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A vertebrate that lives in the water and has fins
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swim bladder
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An internal gas-filled organ that helps a bony fish stabilize its body at different water depths.
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buoyant force
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The force that water exerts upward on any underwater object
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amphibian
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An ectothermic vertebrate that spends its early life in water and its adulthood on land, returning to water to reproduce
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atrium
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Each of the 2 upper chambers of the heart that receives blood that comes in2 the heart.
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ventricle
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Each of the 2 lower chambers of the heart that pumps blood out to the lungs and body
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habitat
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The specific enviroment in which an animal lives
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reptile
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An ectothermic vertebrate with lungs and scaly skin; lays eggs with tough, leathery shells
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urine
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A watery fluid produced by the kidneys that contains urea and other waste materials
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fossil
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The preserved remains of an organism that lived in the past
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sedimentary rock
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A type of rock that forms when particles from other rocks or the remains of plants and animals are pressed and cemented together
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paleontologist
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A scientist who studies fossils to learn about organisms that lived long ago.
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