All organisms interact with their environment. choose one of the biogeochemical cycles and explain how various types of organism
s are part of that cycle and help recycle the substance in an ecosystem. provide one example of how human activity has impacted the cycle you have chosen and one step we can take to reduce human impact on the ecosystem.
The nitrogen cycle ensures the cycling of this element in the environment, making it available to living beings and releasing it back into the environment. Thus, nitrogen can later be reused by other organisms. Several processes are involved in this important cycle, such as:
Nitrogen fixation by bacteria such as Rhizobium;
Decomposition of organic matter (made by decomposing bacteria) and formation of ammonium ion;
Nitrification process, in which two steps are observed: nitration and nitration.
Denitrification, in which denitrifying bacteria guarantee the transformation of nitrates into nitrogen gas.
Human interference in the Nitrogen cycle to increase agricultural production concerns the different ways man has found to make this nutrient available to plants through the use of nitrogen fertilizers that have brought with it a range of environmental problems. Human interference was also through biotechnology, with the discovery of new nitrogen-fixing bacteria and their use in certain plant varieties.
All organisms interact with their environment. choose one of the biogeochemical cycles and explain how various types of organisms are part of that cycle and help recycle the substance in an ecosystem. One example of how human activity has impacted the cycle is that humans have polluted the water making it unsafe and in some cases not suitable to support life.
Ribosomes are mainly made up of ribosomal RNA and ribosomal proteins. Each has two subunits (30S and 60S or prokaryotes) and 40S and 60S in eukaryotes. The smaller unit usually reads the mRNA -with the message from the nucleus -on how to ‘manufacture’ the proteins. The larger subunit actually does the translation by bringing in t_RNAs that carry specific amino acids and then forming peptide bonds between amino acids and ultimately forming polypeptide chains.
Energy is passed from organisms at one trophic level or energy level to organisms in the next trophic level. Producers are always the first trophic level, herbivores the second, the carnivores that eat herbivores the third, and so on.
Many of the skeletons have associated age, sex, ancestry, and cause of death data. Individual remains with known biological information are especially valuable references. Forensic anthropologists have used these skeletons to develop standards for determining sex, age and ancestry in unknown remains
