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Biology, 24.01.2020 07:31 teal5393

Julie finds a snail on the sidewalk and wants to know whether or not the snail moves throughout the day. she places a single mark on the sidewalk next to the snail. what will julie use the mark for initially? determining how fast the snail moves acting as a standard unit of measure determining the displacement of the snail acting as a reference point for detecting motion

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