The last stage is denitrification where nitrates in the soil are converted into nitrogen gas by denitrifying bacteria that use the nitrates in the soil to carry out respiration and produce nitrogen gas. This happens in anaerobic conditions. Another ecological cycle is the carbon cycle - all organisms need carbon to make essential compounds. Plants absorb carbon in the form of CO2 during photosynthesis and this carbon becomes part of the plant biomass in their tissues. Carbon is passed onto the primary consumers when they eat the plant, secondary and tertiary consumers obtain the carbon source when they eat other consumers.
For instance Carbon Dioxide from the atmosphere is synthesized by plants, which is ingested and metabolized by animals, which is converted to Carbon Dioxide during respiration and decay. Humans remove over 40% of the photosynthetic that effort plants in order to support human enterprises. When humans burn fossils fuels that increases the atmosphere Carbon Dioxide by 35%, then during the combustion stage the present of air (oxygen), Carbon Dioxide and water molecules are release into the atmosphere. Human has an impact on the Phosphorus Cycle as well as the Carbon Cycle. The Phosphorus Cycle is representative of the cycle of all biologically important mineral nutrients-those elements that have their origin in the rock and soil minerals of the Lithosphere, such as iron, calcium, and potassium.
Nitrogen fixing bacteria in the roots of leguminous plants reduce atmospheric nitrogen to ammonium using ATP and reduced NAD. The ammonium ions released into the soil are oxidised by nitrifying bacteria firstly to nitrite, and then to nitrate. This oxidation increases the nitrogen content in the soil which plants can use to produces many useful molecules including amino acids, proteins, DNA and ATP. The formation of these ions forms part of the ecological nitrogen cycle which plays a key role in sustaining life on this planet. Plants are the producers for an ecosystem.
The dead zone is littered with the carcasses of dead sea animals. There are 405 dead zones reported world-wide. Natural and Human Impact Dead zones can be caused by both natural and human impact on the environment. High levels of chemical nutrients (nitrogen and phosphorus) cause algae blooms to flourish. After the algae accumulate, it dies, decomposes and depletes the oxygen in the ocean creating a dead zone.
Fossil Fuels were formed very long ago from plant or animal remains that were buried, compressed, and transformed into oil, coal, or natural gas. The carbon is said to be "fixed" in place and is essentially locked out of the natural carbon cycle (www.koshland-science-museum.org). Humans intervene during by burning the fossil fuels. During combustion in the presence of air, carbon dioxide and water molecules are released into the atmosphere. Phosphorus enters the environment from rocks or deposits laid down on the earth many years ago.
The carbon cycle is a process that transfers carbon among producers, organisms, and consumers to indicate two particular places it comes from and its oceans and the combustion of fossil fuels, which releases CO2 to the atmosphere. Humans are putting a huge impact on the carbon cycle. Humans are expanding business and housing developments and in the process are chopping down timbers and removing plants which releases significant amounts of CO2 to the atmosphere. The Phosphorus cycle represents the cycles of all the biologically important mineral nutrients. Phosphate comes from a rock that gradually breaks down and will release other ions.
Over time layers of shells and sediment are cemented together and turn rock, storing the carbon in rock – limestone and its derivatives. Another way carbon is made in this process is from living things. This is where heat and pressure compress the mud and carbon, over millions of years forming sedimentary rock such as shale. And in some cases, when dead plant matter builds up faster than decay, layers of organic carbon become oil, coal and gas (fossil fuels). The cycle returns carbon to the atmosphere through volcanoes.
When a larger animal consumes the hazardous animal, it affects the entire food chain (“What Is Ocean”). Plastic garbage from ships collects in the oceans, where it is eaten by some animals, causing it to choke them or to block their stomachs (Claybourne 38). Littering raises the carbon dioxide levels in the ocean. The carbon dioxide in the trash raises the temperatures of the water, which can lead to coral bleaching. Most of the trash and debris released into the oceans cannot decompose, leaving it floating in the ocean for many years.
Instead, they are nourished by symbiotic bacteria that also produce energy from methane, similar to their relatives that form mats. Chemosynthetic bivalves are prominent constituents of the fauna of cold seeps and are represented in that setting by five families: Solemyidae, Lucinidae, Vesicomyidae, Thyasiridae and Mytilidae. This microbial activity produces calcium carbonate (CaCO3), which is deposited on the seafloor and forms a layer of rock. During a
What are the three trophic levels? There are three trophic levels in our ecosystem. The first trophic level is Producers: Organisms that capture energy from the sun or chemical reactions to convert carbon dioxide to organic matter; most producers are green plants. (Boorse,Wright,2011) The second trophic level is Consumers which are organisms that derive their energy from feeding on other organisms or their products. (Boorse, Wright, 2011) The third trophic level is Decomposers, these organisms feeding actions are a result of rotting or organic material.