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Ecology is the study of how living organisms interact with each other and with their environment. Abiotic factors are the parts of the environment that have never been alive, while biotic factors are the parts of the environment that are alive, or were alive and then died
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A antigens, B antigens, and Rh
Answer: She should Avoid Contact with other people's bodily fluids.
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Groundwater is recharged naturally by rain and snow melt , hope this helps :)
It is transplanted routinely to treat a variety of blood and bone marrow diseases, blood cancers, and immune disorders. More recently, stem cells from the blood stream (called peripheral blood stem cells) and umbilical cord stem cells have been used to treat some of the same blood-based diseases
