1) What evidence is there that the human species has been successful so far? Explain.
Successful evolutionarily means "surviving and spreading geographically". Since we are far from extinction and we've spread all over the world, we are successful as a species.
<span>2) What environmental pressures in the past do you think were most important in shaping the human species as it exists today?
Those were: the weather (too cold, especially in the north and too hot in Sahara) - those made people more able to accomodate to the weather and predators - this made the species more communicative as only working together can we fight off bigger predators.
3) What environmental pressures exist now that you think may be shaping the human species?
</span>The pressures today are : the limited free land, limited resources and changing climate. They are connected to man-made global warming and overpopulation
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4) What environmental pressures do you think may affect humans as Earth becomes more populated with humans in the future? Explain how these pressures may affect human traits.
The pressure in the past will be: raising temperature and flooding, more Co2 in the atmosphere.
We might for example evolve to better extract the oxygen from the atmosphere and be better resistant to heat.
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Answer: I believe that the environmental pressures that exist now and that may be shaping the human species are the use of land, the extraction of resources, greenhouse emissions and water use. This are being used by use more and more as we start overpopulating the earth.
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Answer:
Explanation:
its purpose is for plants converting atmospheric nitrogen so that plants can take it from roots
Its the outer layer for exchanging substance in and out the cell. Thats also the reason why cell membrane are partially permiable
Answer:
Water, air, and soil are three natural resources that we cannot live without. The Forest Service strives to protect, maintain, and restore these valuable assets now and into the future.
Explanation:
Water is one of the most important natural resources flowing from forests. The Forest Service manages the largest single source of water in U.S., with about one-fifth originating from 193 million acres of land which provides drinking water to 180 million people every day.
Soil provides nutrients, water, oxygen and heat to natural land areas. Understanding the ability and capacity of soil to support an ecosystem plays an important role in land management decisions.
Air is a third critical resource for humans, plants, animals and all other organisms within a natural area. Air must be monitored in order to control and lower pollution levels, control smoke caused by wildland fires, and to monitor air quality. The Forest Service monitors the effects of air pollution that may impair visibility, harm human health, injure trees and other plants, acidify or cause unnatural fertilization of streams and lakes, leach nutrients from soils, and degrade cultural resources, like archeological sites and historical buildings. Forest activities that can affect air quality such as prescribed burning, ski areas, and mining are also monitored to ensure compliance with air regulations for human health and to monitor possible impacts to natural resources.