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The graphic representation of feeding le...

The graphic representation of feeding level structure of an ecosystem btaking the shape of a pyramid is called

A

Ecological pyramid

B

Environmental pyramid

C

Biospherical pyramid

D

Pyramid of Biomass

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Study the following statements and select the incorrect ones. (i) Pyramids of energy 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) Saprophytes are not given any place in ecological pyramids even though they play a vital role in the ecosystem.

Just as Bohr.s model of atom was developed on the basis of planck.s quantum theory, wave mechanical model of atom has been developed on the basis of quantum mechanics. The herat of quantum mechanism is Schrodinger wave equation which in turn is based on Heisenberg.s uncetainity principle and de broglie concept of dual nature of matter and radiation. Bohr model could explain the main lines of hydrogen or hydrogenic spectra but could not explain their fine structure. To explain this, it was suggested that each level consists of a number of sublevels, it was suggested that each level consists of a number of sublevels, the transitions between which gave rise to closely spaced lines. The numbers representing the main energy level are called Princiapl Quantum Number (n) while those representing sublevels are called Azimuthal Quantum numbers (l) and these determine the angular momentum of the electron. The orbital angular Number (m) which is just like a further split of a sublevel into finer sublevels. Lastly the electron may rotate or spin about its own axis given rise to Spin Quantum number (s) which determines the angular momentum of the electron. The de Broglie wavelength (lambda) of the electron subjected to an accelerating potential of V volts is given by

VGS PUBLICATION-BRILLIANT-OUR ENVIRONMENT-EXERCISE
  1. In a food chain, the number of organisms at third trophic level is

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  2. What is the source of energy for all ecosystems?

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  3. The graphic representation of feeding level structure of an ecosystem ...

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  4. In ecological pyramids, producers are represented here

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  5. In ecological pyramids, producers are represented here

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  6. In a food chain the largest population is that of

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  7. Identification of a pollutant as organic, inorganic (or) organometalli...

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  8. Biomass can also be used as a

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  9. This pyramid represents the available food as a source of energy at ea...

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  10. Read the following statements and select the correct option: (a) In...

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  11. "The ratio between energy flows at different tropic levels among the f...

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  12. How the energy flows from producers to consumers in a food chain?

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  13. How does the given below concepts differs? (a) Bioaccumulation (b)...

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  14. The plant substances which are not digested by most animals are

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  15. Name the animal substances that are not digested by most animals.

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  16. Space travellers use the following alga to fulfill their food requirem...

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  17. Most of the energy in gasoline is lost as …… in a cars engine rather t...

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  18. The catchment area of the kolleru lake extend up to

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  19. When did government of india declared the Kolleru lake as Bird sanctua...

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  20. Between october and march how many birds visit kolleru every year?

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