Communities and Ecosystems 37.1 Multiple Species Interact in Communities ~Communities are composed of coexisting populations of multiple species ~An ecosystem consists of a biotic community plus its abiotic environment ~Each species in a community has a place where it normally lives and a set of resources necessary for its life activities ~Ecologists describe the diversity of a community by measuring species richness and the relative abundance of each species. * Populations interact in many
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Marine Ecosystems are the largest systems on the planet‚ covering over 70 percent of the Earth’s surface and constituting over 99 percent of the living space on the planet (area x depth). These vast ecosystems are composed of many different habitats which extend from the near shore regions to continental shelves and the deep ocean. They are home to millions of species and provide food‚ income‚ protection‚ and many other vital ecosystem services to billions of people around the world. ECOLOGICAL
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been decades since I last visited the Gobi Desert. Back in then‚ I was still a secondary student who was amazed by this Asia "endless sea". Time flies‚ I am now studying the mysterious Gobi Desert as a geologist. By comparing my research data collected recently with my previous knowledge and memories about the desert‚ I am shocked by its external and internal change. Stretching from South Mongolia to China‚ Gobi Desert is the world fifth-largest desert. With wonders like the Silk Road‚ the remote
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vehicle searches don’t occur because police have probable cause. They occur because people get tricked or intimidated into consenting to search requests. Consenting to a search request automatically makes the search legal in the eyes of the law. And the 4th Amendment doesn’t require officers to tell you about your right to refuse. So if you’re pulled over‚ don’t try to figure out whether or not the officer has probable cause to legally search you. You always have the right to refuse search requests by
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authors and subscription information: http://www.tandfonline.com/loi/cjcc20 May 4th and June 4th compared: A sociological study of Chinese social movements Zhidong Hao a a Assistant Professor of Sociology‚ Department of Sociology‚ Anthropology and Social Work‚ Whittier College‚ Whittier‚ CA‚ 90608‚ USA E-mail: Published online: 27 Apr 2007. To cite this article: Zhidong Hao (1997): May 4th and June 4th compared: A sociological study of Chinese social movements‚ Journal of Contemporary
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thousands of Chicagoans live in what’s known as a food desert. A food desert is in an area of focus that is short on access to fresh meat and produce. These areas are usually over populated with packaged and processed foods‚ which are not always healthy. They also have a significant amount junk that you can easily find in convenience stores and fast food restaurants. What exactly qualifies a neighborhood to be part of a food desert? Food deserts usually have a bunch of blocks without a corner grocery
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Surviving on a Desert Island Sometimes when I am daydreaming‚ I think about far off places‚ such as the beautiful uninhabited islands in the South Pacific. I imagine myself being shipwrecked on one of these islands‚ the way actor Tom Hanks was in Castaway. Probably I’ll never be stranded on a desert island‚ but if I were‚ I would like to have three things with me: Machete‚ Fishing Line‚ and A lighter The first thing that I would like to have is a machete. A machete will help cut
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to a just desert. The just desert theory is a practical concept that purports a punishment is needed to preserve the social equity disturbed by crime; however‚ the level of punishment should be fitting with the crime. The Just desert model suggests that retribution justifies punishment because individuals deserve what they received for past deeds‚ but punishment based on deterrence is wrong because it involves an offender’s future actions‚ which cannot be predicted. Under the just desert theory the
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The journey into the 4th Dimension 4/19/12 Nature of Math The world we live in today is a world of 3-dimensions filled with objects that are zero‚ one and two dimensions. We all walk around in our 3-dimensional world thinking there could be no other dimensions. But would you believe me if I were to tell you that there is a 4th dimension that lies past our daily experience? The truth is that there is a 4th dimension and it’s not that far away‚ the crazy thing is that there could
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The Arctic Tundra ecosystem Arctic tundra is located in the northern hemisphere‚ encircling the North Pole and extending south to the coniferous forests of the taiga. The arctic is known for its cold‚ desert-like conditions. All of the plants are adapted to sweeping winds and disturbances of the soil. Plants are short and group together to resist the cold temperatures and are protected by the snow during the winter. They can carry out photosynthesis at low temperatures and low light intensities
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