Why should people be concerned about the extinction of a species? A. The extinction of a species is an opportunity for new species to emerge. B. The extinction of a species upsets the balance of ecosystems. C. The extinction of a species increases overall biodiversity. D. The extinction of a species can be reversed with captive breeding.
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Biology, 21.06.2019 19:00
The skeletal system performs a variety of functions that are crucial to maintaining life processes. what function is performed in the bone marrow, but not in the ossified bones of the skeleton? a oxygen transportation c mineral storage b. muscle attachment d red blood cell production
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The shift of a vehicle's weight around its center of gravity is known as
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Development of new communities in disturbed environments, such as a burned or a clear cut forest, is called
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Biology, 22.06.2019 11:00
Examine the air pressure map. which type of line is shown on the map?
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