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2
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Type of variation that falls intoa range of values
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3
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Type of organism that gives birth to live young
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5
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A characteristic that has changed to suit an organism's environment
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6
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Lays eggs
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7
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Type of variation that falls into categories
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10
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Gives birth to live young
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13
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An organism that maintains a constant body temperature
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14
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An organism whose body temperature changes with it's surroundings
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15
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The top group of the classification hierachy
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16
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The offspring of 2 different species
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17
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The phylum that vertebrates belong to
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18
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Type of variation caused by characteristics passed from parent to offspring
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