Short Answer TypeSketch the following pyramids.
(i) Pyramid of number (ii) Pyramid of biomass. (iii) Pyramid of energy.
Construct a pyramid of biomass, starting with phytoplankton. Label three trophic levels. Is the pyramid upright or inverted? Why?
Long Answer TypeDefine ecological pyramids and describe with examples, pyramids of number and biomass.
One Word AnswersShort Answer TypeWhat is a sere?
(i) Pyramid of number
A Pyramid of numbers in a grass land ecosystem only three top carnivores are supported in an ecosystem based on production of nearly 6 millions plants.
(ii) Pyramid of biomass
Pyramid of biomass shows a sharp decrease in biomass at higher trophic levels. Data from a bog ecosystem.
(iii) Pyramid of energy
An ideal pyramid of energy. Observe that primary producers convert only 1% of the energy in the sunlight available to them into NPP.
One Word AnswersShort Answer Type
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