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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.
Define Intra enterocyte transport - non-haem iron absorption? Intra enterocyte transport: In the enterocyte, the absorbed iron can have one of the following metabolic fates:
Q. Which Foods are used by Microorganisms for Energy? The carbohydrates, especially the sugars, are most commonly used as an energy source, but other carbon compounds can also
Classification of Anaemias Based on Etiology Anaemia can be classified as Impaired Production of Red Blood Cells and Hemoglobin: This can be due to nutritional def
Q. Define Neural and Neurotransmitter Control? Coronary arteries are richly innervated by adrenergic and parasympathetic nerves. Both alpha 1 and alpha 2 adrenergic receptors a
hmp shunt introduction types significant
Q. What are some fungal diseases transmitted by animal feces? Pigeon and Bat feces can carry Histoplasma capsulatum, the fungus agent of histoplasmosis. The infection is transm
Define Determinants of Food Security - Vulnerability? It is the fourth critical variable and defines the risk factor to which a person, family, community or nation is exposed o
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Do octopus and squids have exoskeleton? Octopus and squids normally do not produce external shell (some squid species can have an internal shell). One cephalopod group, the nau
what is biodiversity
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