Most environmental hazards, like infectious pathogens, must reach human hosts if they are to cause harm. Think of five or more environmental agents that can cause disease in humans and, for each, describe two or more routes by which people might be exposed to them.
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Biology, 22.06.2019 01:40
Elephants in the savanna regions of africa dig holes in dried up river beds to reach water lying just below the surface. these holes provide drinking water for other animals as well. so, without the elephants, many animals might otherwise die from lack of water during the dry season. the location in which the elephants live is an example of a/n and the role they play in creating water holes is an example of a a) ecosystem; habitat b) community; niche c) habitat; niche d) niche; habitat
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Biology, 22.06.2019 09:30
The “ecological footprint” left by a citizen of a developed nation is about four times larger than that left by a citizen of a developing nation. why is this the case?
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Most environmental hazards, like infectious pathogens, must reach human hosts if they are to cause h...
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