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Pollution - Environmental Pollution
Pollution refers to any undesirable change in the physical, chemical or biological characteristics of our environment, i.e. air, water and oil that may or will adversely affect humans or other species and life support systems of our biosphere directly or indirectly. A substance whose introduction into a resource damages the latter's usefulness is called a pollutant. Pollutants are grouped into two broad categories:
The non-biodegradable pollutants such as heavy metals, pesticides, move through the food chain and may get magnified to dangerous levels in higher trophic level organisms. Some of these combine with other compounds and produce toxic substances. However, biodegradable materials such as human and animal wastes, agro-based residues and fertilisers can also pose a threat if their quantities or inputs exceed the Assimilative capacity of the environment.
Lyme disease It is a metazoonoses caused by a spirochaete, Borrelia burgdorferi. The disease based on the specific symptoms, is also known as erythema migrans (ECM) or lyme arthr
What is Exposure Assessment Exposure Assessment : The qualitative and quantitative evaluation of the degree of intake likely to occur.
Subphylum Trilobitomorpha Subphylum Trilobitomorpha involves the trilobites. All species are extinct and the fossils point out that they were all marine forms belonging to Pal
What is Resistant Starch? Well, RS is defined as the starch, which escapes enzymatic hydrolysis in the small intestine and passes to the colon where it is fermented by colonic
Q Which Of substance are microtubules made and In which structures and cellular processes do microtubules participate? Microtubules are made of consecutive dimers of the protei
Occur in 10 per cent to 40 per cent of all native-valve IE, and complicates aortic IE more commonly than mitral or tricuspid IE. Periannular infection is of even greater concern wi
Q. How is the nervous system of molluscs organized? Molluscs have well-developed sensory structures. It is accepted that cephalopods, like squid and octopus, have eyes with ima
Suppuration High number of PMN cells have been detected around implants that are associated with severe signs of mucosal inflammation. Several studies have shown the presence o
in what aspect are the cnidarians similar to the protozoans?
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