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5
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line symmetry; the quality of being divisible into halves that are mirror images
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6
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the process by which a new organism develops from the joining of two sex cells
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7
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an animal that has no backbone
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9
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an invertebrate animal that uses stinging cells to capture food and defend itself
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11
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an organism that does not live in or on other organisms
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12
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a cnidarian body plant characterized by a bowl shape and adapted for a freed-swimming life
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16
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the process by which a single organism produces a new organism identical to itself
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18
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an organism that provides food to a parasite that lives on or inside it
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19
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the quality of having many lines of symmetry that all pass through a central point
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20
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a group of many individual animals
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21
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an organism that feeds on dead or decaying material
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22
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an organism that lives inside or on another organism and takes food from the organism in or on which it lives
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24
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the joining of an egg cell and a sperm cell
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