Answer:
Option D.) Groundwater
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ANSWER: E) connect parks in the United States and Canada with protected corridors where wildlife can travel safely.
Answer:
Their function is to package DNA into structural units called nucleosomes. Histones are the main proteins in chromatin. Chromatin is a combination of DNA and protein which makes up the contents of a cell nucleus. Because DNA wraps around histones, they also play a role in gene regulation.
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-Jarvis