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What are the environmental harms caused by mercury pollution? What are the main sources of mercury pollution?
Mercury is a metal that when present in the water of lakes, rivers, and seas contaminates fishes, molluscs, crustaceans, and other living beings. The mercury accumulates with the food chain and in each following trophic level the amount of the metal within the individuals is higher. When humans eat contaminated animals they also become contaminated and severe nervous system injuries may emerge. The main sources of mercury pollution are gold mining and the use of derived substances in industry and agriculture.
Define Population size, inbreeding and genetic variation? "Darwin proposed, and modern evolutionary biology affirms, that evolution is relies on variation in the characteristic
Osmoregulation in Terrestrial Environment Earlier you have learnt about osmoregulation in aquatic environment. In this section, we shall study how the terrestrial animals cop
Density - Population Parameters and Regulation Density is defined as number of individuals or population biomass per unit of area or volume at any given time. Biomass refers t
Extracted chlorophyll pigments If we take chlorophyll molecule in a test tube and provide 2 CO and water and expose the mixture to sunlight, glucose is not formed. If we
In the presence of oxygen, the process of glycolysis produces which of the following products? A) 2 glycerol B) 1 lactate C) 2 lactate D) 2 pyruvate E) 1 pyruvate
Clothes : The concept of clothes might have started even before weaving, as an extension of the practice of carrying food hd implements about. Attachments with a convenient
HACCP Plan : The written document which is based upon the principles of HACCP and which delineates the procedures to be followed.
Insects - Hormones in Growth and Reproduction In insects hormones regulate moulting and metamorphosis. The larvae or nymphs which hatch out of the eggs undergo regular moultin
The two gases making highest relative contribution to the greenhouse gases are: 1. CO2 and CH4 2. CH4 and N2O 3. CFC55 and N2O 4. CO2 and N2O CO2 and CH4
Determine about the Brain tissue Brain tissue looks solid to the naked eye (it has a consistency of stiff jelly), so 'finger-grain' investigations had to await two technologic
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