Chapter 52

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Biological Sciences
Kamini Persaud

Ecology is the scientific study of the rich and varied interactions between organisms and their environment. Communities are systems embracing all the organisms living together in the same area Ecosystems are systems embracing all organisms in an area plus their physical environment Biosphere is the system that embraces all regions of the planet where organisms live. Environment encompasses both abiotic factors (physical and chemical) and biotic factors (living organisms) The climate of a region is the average of the atmospheric conditions over the long term and it varies due to solar energy Solar energy depends on the angle that light hits the earth and amount of earths atmosphere passed through. Cooled air from the North and the South travel to the equator and meet at the intertropical convergence zone. In the tropics air is heated by the sun allowing it
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