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15 Cards in this Set

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Vertebrate Animal with a constant internal temperature
Endotherm
Supportive framework of bone and/or cartilage that provides an internal place for muscle attachment and protects a vertebrate's internal organs
Endoskeleton
Thin, liquid-filled, protective membrane that forms around the embryo.
Amniotic
Tough, flexible tissue that joins vertebrae and makes up all or part of the vertebrate endoskeleton.
Cartilage
Animal that has a notochord, a nerve cord, gill slits, and a postanal tail present at some stage in its development
Chordate
Backbones that are joined by flexible cartilage and protect a vertebrate's spinal nerve cord
Vertebrae
Cyclic response of inactivity and slowed metabolism that occurs during period of cold temperatures and limited food supplies
Hibernation
Vertebrate animal whose internal temperature changes when the temperature of its environment changes
Ectotherm
Fanlike structure used by fish for steering, balancing and movements
Fin
Muscular structure at the end of a developing chordate
Postanal
In developing chordates, the paired openings found in the area between the mouth and digestive tube
Gill Slits
Inactivity in hot, dry mouths during which amphibians hide in cooler ground
Estivation
Thin, hard plates that cover a fish's skin and protect its body
Scales
Tubelike structure above the notochord that in most chordates develops into a brain and spinal cord
Nerve Cord
Firm but flexible structure that extends along the upper part of a chordate's body
Notochord