gross and net primary productivity

Primary and Secondary Productivity - 'The amount of organic matter or biomass produced by an individual organism, population, community or ecosystem during a given period of time is called productivity'. Primary production refers to all or any part ..

'The amount of organic matter or biomass produced by an individual organism, population, community or ecosystem during a given period of time is called productivity..

One of the primary objectives of agriculture is to produce food. In the entire history of agriculture, food production has remained a prime objectiv..

Describe which measure of central tendency - mean, median, or mode was probably used in each situation. Answer in order. I. One half of the gross domestic product (GDP) of country A comes from more than 42.5% of its citizens. II. Computation of per-capita income in several count..

'The rate of organic matter build up or stored by producers in their bodies per unit time and area is called net primary production (NPP)'. \ GPP - Energy lost by respiration and maintenance = NPP The biochemical formula that describes photosynthesis is,..

There are mainly two types of food chains operating in nature. a) Grazing food chain b) Detritus food chain. Grazing food chain is generally seen in ecosystems such as grassland, pond or lake where a substantial part of the net primary production is grazed on by herbiv..

Types of Food Chains - There are mainly two types of food chains operating in nature. a) Grazing food chain b) Detritus food chain. Grazing food chain is generally seen in ecosystems such as grassland, pond or lake where a substantial part of the net primary production..

Lindemann (1942) put forth ten percent law for the transfer of energy from one trophic level to the next. According to the law, during the transfer of organic food from one trophic level to the next, only about ten percent of the organic matter is stored as flesh. The remaining is lost during trans..

An alkyl halides or a benzyl halide reacts with ammonia to form primary secondary and tertiary amines. If ammonia is used in excess primary amine is the major product. Under these conditions in the reaction mixture, an alkyl halide is more likely to encounter and..