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22 Cards in this Set
- Front
- Back
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Invertebrates
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Animals without backbone
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vertebrates
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Animals with backbone
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Sherical symmetry
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cut into identical halves by any cut through its center
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Radial symmetry
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cut into two identical halves by any longitudinal cut through it's center
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Bilateral symmetry
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cut into two identical halves by a single longitude cut alog its center with divides into right and left halves
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Epidermis
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An outer layer of cells designed to provide protection
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Mesenchyme
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separates the epidermis from the inner cells in a spounge
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Epithelium
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Animal tissue consisting of one or more layers of cells
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Anterior end
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an animal that contains in head
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Posterior end
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an animal that contains in the tail
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Circulatory system
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a system designed to trasport food throughout a creatures body
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Nervous system
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a system of sensitive cells that respond to simuli
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ganglia
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masses of nerve cell bodies
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Hermaphroditic
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Possessing both the male and the female repodution organs
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Regeneration
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the ability to regrow a missing body part
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mantel
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makes the mollusk's shell, and performs respiration
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Shell
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multilayered stucture secreted by the mantle
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Visceral hump
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a hump that contains a heart, digestive, and excretory organs
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foot
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a muscular organs that is used for locamotion
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Radula
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An organ covered with teeth that are use to scrape food into their mouths
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Univalve
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An organism with a single shell
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Bivalve
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An organism with two shells
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