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Flow of energy declines as it passes fro...

Flow of energy declines as it passes from lower to higher trophic level. This is explained by `ul("first law of thermodynamics")`.

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The movement of energy from lower to higher trophic level is

Organisms at a higher trophic level have less energy available. Comment.

Energy transferred from one trophic level to another is :

The loss of energy as one proceeds from one trophic level to the next higher level is approximately

Energy transfer from one trophic level to other in a food chain is :

Study the following statements and select the incorrect ones. (i) Pyramids of energy and yearly biomass production can never be inverted, since this would violate the laws of thermodynamics. (ii) Pyramids of standing crop and numbers can be inverted, since the number of organisms at a time does not indicate the amount of energy flowing through the system. (iii) There are certain limitations of ecological pyramids such as they do not take into account the same species belonging to two or more trophic levels. (iv) Saprohytes are not given any place in ecological pyramids even though they play a vital role in the ecosystem.

The energy flow in the ecosystem follows the second law of thermodynamics'. Explain.

Assertion: The loss of biologically useful energy as heat with every energy transfer in a food chain is a consequence of the second law of thermodynamics. Reason: Energy does not remain trapped permanetly in any organism. It is either passed on to higher trophic level or becomes available to detritivores and decomposers after the organism dies.

In an open ocean, the biomass of primary producers (microscopic algae) is often lower than the biomass of higher trophic levels (zooplanktons and fish), as illustrated below by an inverted pyramid of biomass. How can there be enough food in an open ocean to support the higher trophic levels?

The efficiency for energy transfer from one trophic level to another is nearly ....... per cent.

ARIHANT PUBLICATION-ECOSYSTEMS-PART II (Energy Flow) (Question For Assessment) (Very Short Answer Type Questions) (Correct the statement, if required by changing the underlined word)
  1. Pyramid of energy is always ul("inverted").

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  2. Flow of energy declines as it passes from lower to higher trophic leve...

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