Construct an ideal pyramid of energy when 1,000,000 joules of sunlight is available. Label all its trophic levels.

(a) Name an ideal pyramid existing in an ecosystem. Construct it up to its three trophic levels along with their names. (b) The sun provides 1,000,000 J of sunlight (solar energy) to an ecosystem. Write the amount of energy that is available to the first and third trophic levels, respectively.

Construct a pyramid of biomass starting with phytoplankton. Label its three trophic levels. Is the pyramid upright or inverted ? Justify your answer.

[A] : There is a gradual increase in the energy content at successive trophic level from producer to consumers . [R] : Pyramid of energy does not show energy accumulation pattern at different trophic levels .

The fraction of energy lost when an organism proceeds from one trophic level to the next trophic level is

" An ideal pyramid of energy given below,find out the energy at the tertiary consumer (TC) level :- "

Read the following statement . With respect to the ecological pyramid , mark the correct statements. a . In most of the ecosystems , pyramids of number , energy and biomass are upright . b. Producers are generally more in number or biomass than herbivores in an upright pyramid. c. Herbivores are less in number and biomass than carnivores in an inverted pyramid. d. Energy content is higher at a lower trophic level than that at a higher trophic level.

The energy available to the organism at the third trophic level is called

Which of the following statement/s regarding ecological pyramid is/are wrong? I. In most ecosystem, all the pyramids, of number, of energy and biomass are upright. II. Each trophic level has a certain mass of living material at a particular time called as the standing crop. III. The pyramid of biomass in sea is generally upright because the biomass of fishes far lower that of phytoplankton. IV. Pyramid of energy is always upright, can never be inverted. V. Energy at a lower trophic level is always less than at a higher level.