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26 Cards in this Set
- Front
- Back
Vertebrae
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Segments of bone or some other hard substance that are arranged into a backbone
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Notochord
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A rod of tough, flexible material that runs the length of a creature's body, providing the majority of its support
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Endoskeleton
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A skeleton on the inside of a creature's body, typically composed of bone or cartilage
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Bone marrow
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A soft tissue inside the bone that produces blood cells
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Axial skeleton
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The portion of the skeleton that supports and protects the head, neck and trunk
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Appendicular skeleton
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The portion of the skeleton that attaches to the axial skeleton and has the limbs attached to it
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Closed circulatory system
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A circulatory system I which the oxygen-carrying blood cells never leave the blood vessels
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Arteriws
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Blood vessels that carry blood away from the heart
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Veins
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Blood vessels that carry blood back to the heart
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Capillaries
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Tiny, thin walled blood vessels that allow the exchange of gasses and nutrients between the blood and the cells of the body
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Olfactory lobes
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The lobes of the brain that receive signals from the receptors in the nose
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Cerebrum
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The lobes of the brain that integrate sensory information and coordinate the creature's response to that information
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Optic lobes
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The lobes of the brain that receive signals from the receptors in the eyes
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Cerebellum
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The lobe that controls involuntary actions and refines muscle movement
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Medulla oblongata
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The lobes that coordinate vital functions, such as those of the circulatory and respiratory systems, and transport signals from the brain to the spinal cord
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Internal fertilization
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The process by which the male places sperm inside the female's body, where the eggs are fertilized
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Hibernation
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A state of extremely low metabolism and respiration, accompanied by lower-than-normal body temperatures
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External fertilization
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The process by which the female lays eggs and the male fertilizes them once they are outside of the female
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Oviparous development
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Development that occurs in an egg that is hatched outside the female's body
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Ovoviviparous development
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Development that occurs in an egg that is hatched inside the female's body
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Viviparous development
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Development that occurs inside the female, allowing the offspring to gain nutrients and vital substances from the mother through a placenta
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Anadromous
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A life cycle in which creatures are hatched in fresh water, migrate to salt water as adults, and then return to fresh water in order to reproduce
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Bile
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A mixture of salts and phospholipids that aids in the breakdown of fat
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Atrium
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A heart chamber that receives blood
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Ventricle
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A hear chamber from which blood is pumped out
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Ectothermic
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Lacking an internal mechanism for regulating body heat
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