The table shows some observations made by four students during a field trip to a nature area. which student observed the area that has the greatest biodiversity? * student 1 student 2 student 3 student 4 think globally, act locally! this is an expression that has been applied to many ecological problems, such as global warming (global climate change), air pollution, and recycling. describe how various organisms are part of that biochemical cycle and explain how they recycle that substance in the ecosystem and biosphere. * provide one example of how human activity has impacted your chosen biochemical cycle. discuss one step we can take to reduce harmful human impact on the ecosystem. *

from my research i have to the conclusion that decomposers, such as fungi, bacteria and invertebrates, play a critical role in nutrient cycling and without them the earth's ecosystem may not support life as we know it. elements such as carbon, nitrogen and phosphorus exist in limited amounts on earth, although huge amounts of carbon are being released into the atmosphere from underground sources now by humans. it is still extremely important that other nutrients be retained by the process of re-use. decomposers are organisms that are able to chemically break down dead material and make these elements available for use by other organisms. without this breakdown of dead material, dead bodies would pile up. so decomposers also play a role in clean up also. without them, life might not continue as we know it and dead material would overwhelm the earth.