biological magnification water bodies

Biological Magnification - Certain harmful substances, usually ones not found in nature but introduced by man, may get into plants and/or animals. These poisonous substances may not be broken down in the body or excreted easily, efficiently and quickly. Instead, they a..

There are many pollutants like the DDT that are not bio-degradable. These accumulate in the organisms and cause serious health problems. The contamination of water with these pollutants results in their entry into the microscopic plants and animals. These organisms are fed upon by higher ..

Due to bioaccumulative characters, these pollutants pass through the food chain and food web. While passing through the organisms, the concentration of pollutants gets increased. This is called bio magnifications. For e.g., 0.5 ppm DDT in grasses gets magnified to 2ppm in sheep..

Water is essential for life. The types of plants and animals distributed in water bodies greatly depends upon the nature of water, fresh water or sea water. The organisms have to face different problems of water scarcity or abun..

Water is the most abundant compound in the vast majority of cells. It forms about 60 to 90% of the total chemical content of the cell. Water accounts for about 65% of the chemical composition in the human body. In a jellyfish, the water content in the ..

. A plasma protein angiotensinogen is converted to apeptide angiotensin II by renin. Angiotensin II acts as a hormone. 1) It increases blood pressure by causing arterioles to contract. 2) It stimulates the adrenal gland to produce another hormone aldosterone, which in turn induces the dis..

Water Pollution - Pollution of water is a broad subject dealing with different types of pollutants entering the hydrological cycle. Surface flowing river water, underground water and vast sea water are included in a broad subject of water ..

Animals reduce water loss from their body. For example, the kangaroo rat conserves water by creating solid urine and can love without drinking water. Camels are very economical in temperature and can maintain blood stream moisture even in extreme hea..

There are two overlapping water cycles operating in nature. 1) Global water cycle 2) Biological water cycle. Global water cycle does not involve life. Water evaporates from water bodies like seas and oceans (m..

Due to depletion of underground water, the tube wells dry up, thereby causing severe water shortage. Environmentalists have suggested the following measures for avoiding misuse and wastage of potable water: Development of integrated watershed for drinking, irrigation a..