Question

WHAT IS FOOD PYRAMID ?

Answer 1

google it :)

Answer 2

Food pyramid is an ecological representation that shows how efficient energy transfer is between the trophic levels(the different levels in the food pyramid). Types of food pyramid includes biomass and net production. Biomass food pyramid shows how much dry mass(g/m2) is transferred whereas food pyramid of net production shows how much energy(J or kJ) is transferred to the next trophic level. The size of each trophic level may vary and thus, the food pyramid as well may not be a perfect triangle.

Answer 3

http://en.wikipedia.org/wiki/Food_guide_pyramid

A food guide pyramid is a pyramid shaped guide of healthy foods divided into sections to show the recommended intake for each food group. The first food pyramid was published in Sweden in 1974.[1][2][3] The most widely known food pyramid was introduced by the United States Department of Agriculture in the year 1992, was updated in 2005, and then replaced in 2011.[4] Over 25 other countries and organizations have also published food pyramids.[5]