A live, weakened version of the mealse viruse is what is used. So the answer would be D
Explanation:
The ways in which an element—or compound such as water—moves between its various living and nonliving forms and locations in the biosphere is called a biogeochemical cycle. Biogeochemical cycles important to living organisms include the water, carbon, nitrogen, phosphorus, and sulfur cycles.
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Intro to biogeochemical cycles (article) | Khan Academy
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Answer:
it may be based on there surrounding that they have adapted to .
The Tundra.. IT HAS THE COLDEST TEMPS.
