Stem cells are what allow planaria to grow and regenerate as the stem cells can change into any of the cells that make up the planaria.
Answer: board-certified "pathologist" (physician).
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Answer: The deer mouse nests alone for the most part but during the winter will nest in groups of 10 or more. Deer mice, specifically the prairie form, are also abundant in the farmland of the midwestern United States.
Explanation: copied
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It should be a short-day plant because it grows in the winter.
