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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 Features of male and female ascaris lumbricoides? i) Ascaris lumbricoides is commonly called round worm. ii) Body is elongated, cylindrical, tapering at bot
how can petorl formed
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PR E FORMATION THEORY - Proposed by Marcello Malpighi. Studied chick egg and proposed his work in "De ova-incubato". According this different part of embryo previousl
how does these phylem parasites????
Board spectrum antibiotics are effective against several diff. types of harmful bacteria ex: tetracycline
Define Nutritional Availability - Microbial Survival and Growth? Food borne microbes are chemotrophs. Generally the types of microorganisms present on a particular food are the
how ionosinic pathway ric acid from ammonia forms u
Emtricitabine (FTC, Emtriva) Emtricitabine is the 5-fluorinated derivative of lamivudine. It has same safetyand efficacy, and can be given once daily. It is available alone or
Q. How are the three major arthropod classes characterized according to the number of limbs? Most crustaceans have five pairs of limbs. Arachnids present four pairs and Insects
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