Each spring, high school students, college interns, and retirees count and weigh tiny glass eels in streams that feed into the Hudson River. They report their observations to the New York State Department of Environmental Conservation Hudson River Estuary Program and the National Estuarine Research Reserve System, who depend on volunteers to help build a database of information about glass eels. The observations that these volunteers make would best be described as .
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Is a measure of the different types of organisms in a community. question options: tertiary secondary primary none of the above
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Afossil of a sable antelope with his i was observed in the topmost layer of soil a fossil of a zebra was found in low at the bottom layer contains fossils of a blue in this discovery tells us that what
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Each spring, high school students, college interns, and retirees count and weigh tiny glass eels in...
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