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Q. What are the environmental harms caused by mercury pollution? What are the main sources of mercury pollution?
The Mercury is a metal that when present in the water of rivers, seas and lakes contaminates fishes, crustaceans, molluscs and other living beings. The mercury accrues along the food chain and in each following trophic level the amount of the metal within the individuals is higher and when humans eat contaminated animals they also become contaminated and severe nervous system injuries may emerge. The major sources of mercury pollution are gold mining and the use of derived substances in agriculture and industry.
Feeding mechanism in holozoic animal
prototherians are unfinished mammals
What is the vascular cambium? What is its function? Vascular cambium is the secondary meristematic tissue that in roots and in the stem creates the vascular tissues (xylem and
Define Absorption, Storage and Elimination of vitamins? Reading through this section you would realize that all fat-soluble vitamins undergo similar metabolic fate. They are a
#question.what is protostomous and deuterostomes development.
Ecology Very often a word has a precise well-defined meaning in scientific literature but is loosely used in everyday language. It is, therefore, necessary for you to be clear
At the present level of the biotechnology what are the main techniques of genetic engineering? The major techniques of genetic engineering today are: the recombinant DNA techno
Tetanus and Diphtheria Everyone who has had a primary series as a child should receive a tetanus-diphtheria toxoid (Td) booster injection once every 10 years. Before traveling
Q. To what substance is the acidic flavor of fermented milk due? Some bacteria ferment milk lactose by lactic fermentation producing lactic acid this product is responsible for
Phases of Respiration in Animals The procedures of respiration in these animals have the following phases. i) External respiration is usually described as breathing. It inv
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