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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.
Define the effects of Deficiency of Calcium in the Body? If there is a continued inadequate intake or poor intestinal absorption of calcium, plasma calcium concentrations will
Types of Cambium On the basis of the arrangement of the Fusiform cells as seen in tangential section, cambium is divided into: A) Storied/Stratified Cambium : The groups o
What is the route of the ingested food from swallowing until the duodenum? Unless reaching the duodenum the food enters the mouth, passes the pharynx, goes down the esophagus a
E. coli DNA has a MW of about 2.7 x 10^9 Daltons. How many meters long is this molecule and what does this tell you about the state of the intracellular DNA? ( The lenght of a sing
Heterophagic intracellular digestion is the breaking into minute substances of external substances engulfed in the cell by pinocytosis or phagocytosis. Phagosomes or pinosomes fuse
Define Biosystematics - Animal Taxonomy Biosystematics is basically synonymous with systematic, though it places more emphasis upon genetic (concerning inheritance) and cytolog
I nfe c tio u s bursal disease Infectious bursal disease (popularly known as Gumboro disease) is an acute contagious disease of young chicks caused by an RNA virus, a memb
Q. Important Herbaria? The herbarium is a place where dried and mounted specimens are stored according to any recognised system of classification. Special attention is paid tow
Which of the following are likely to help conserve soil and prevent erosion?
explain satellite chromosomes
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