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Determining whether clean groundwater has become dirty and what caused any contamination is a complex pursuit. Stephen Osborn and three colleagues from Duke University set out to learn whether drinking water was really being contaminated by nearby hydrofracking. Osborn’s team focused on sites in northeastern Pennsylvania and adjacent New York, […]

1. Examine the map of the island (attached), with the 4 proposed conservation sites. a. Does the shape of the proposed conservation area matter? Which area(s) are shaped in a desirable way? Which areas are shaped in a detrimental way? Explain. b. Does the size of the proposed conservation area […]

Q1. A subject extends his arm palm up to catch a falling object. The contact of object with the hand triggers a reflexive response in the biceps muscle. But this response is different and opposite if the object is a raw egg instead of a ball. Explain why with reason? […]

Q1. Define growth and note how it applies to bacteria. Q2. Describe the process of cell division in bacteria. List and describe the four phases of growth in a bacterial culture. Q3. List and describe at least four methods used to measure bacterial growth. Q4. List at least six physical […]