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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.
Explain the Regulation of blood pressure? The renin-angiotensin system regulates the blood pressure. The synthesis of renin is decreased by calcitriol through its interaction
Deinococcus radiodurans is a bacterium that was isolated from cooling ponds in and around nuclear power plants. It is highly resistant to ionizing radiation. Propose an hypothesis
Explain about the RNA Viruses - carcinogenic? All oncogenic RNA viruses are retroviruses. They are of 2 types. They are acute transforming retroviruses and slow transforming re
NAILS - Cover terminal segment of fingers & toes. Highly vascular dermis under lying the nail is called nail bed . It gives pinkish colour to nail. The small part
Braxy The causative agent of braxy is Cl. septicum. It usually affects lambs. The agent is a normal inhabitant of soil and is frequently found in the faeces of herbivores. Bra
general charactristics of phylum protozoa
Define Classification of Fats and Fatty Acids? You must be wondering in this unit on lipids why we are talking about fats and oils and not using the term lipids. Definitely whe
During digestion, the role of pancreatic lipase is to: -digest cholesterol into dimethlyalpyrophosphase -inhibits interactions between lipids and bile salts -hydrolize TG
Triacylglycerols which is also known as triglycerides or fats consist of three fatty acid chains esterified to a glycerol backbone. Simple triacylglycerols have t
Explain Class Mammalia in animal kingdom? Class Mammalia: Mammals are distinguished by their hair and their mammary glands. Mammary glands, after which this group of vertebrate
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