biological magnification

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 accumulate ..

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 accumulate in the tissues, and as the living organis..

Food chain studies help, a) understanding the feeding relationships and the interaction between organisms in any ecosystem. b) comprehend the energy flow mechanism and matter circulation in ecosystems. c) understand the movement of toxic substances and the problem of 'Biological magn..

The study of food chains helps in understanding food relationship and interdependence among various organisms in an ecosystem. The mechanism of transfer of food, energy and nutrients through various components of nature can also be studied The effect of the use of pesticides on the ecosyste..

It is a sophisticated form of microscope, which can provide a higher magnification of the object (up to 1,00,000 times or more). The electron microscope employs an electron beam emanating from a cathode, instead of light as in the compound microscope. It uses coils instead of lenses. fig...

Extensive usage of several pesticides and other chemicals to protect our crops from diseases and pests has resulted in the entry of these harmful chemicals into our bodies through the food chain. These chemicals are either washed down into the soil or into the water bodies. From the soil, these ar..

Significance of Food Chains - The study of food chains helps in understanding some of the important aspects of the ecosystem in particular and environment in general. The food relationship among the different organisms in an ecosystem The food chains are the living components of the biosphere These..