Tag: pyramid
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Structure of Kidney
Position of kidneys: Lie on the posterior wall of abdomen, outside the peritoneal cavity (space within abdomen lined by peritoneum, a type of serous membrane i.e. a serum secreting membrane). Weight of each kidney: approx. 150 gm Size of each kidney: approx. size of a clenched fist; 4-5 inches long, 2-3 inches wide, 1 inch…
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Ecological Pyramids
Introduction Ecological Pyramids are graphical representation of structure & function of ecosystem at trophic levels. First described by Charles Elton, hence, also called Elton Pyramids. Show relative amounts of parameters like number, energy, biomass etc. across trophic levels. First trophic level/Producer forms the base. Successive trophic levels are represented by tiers above the base. 1)…