Energy flow and energy transformations in living systems strictly conform to the:

Related Mcqs:

1. In a food chain, the total amount of living material is depicted by: A. Pyramid of biomass B. Pyramid of energy C. Pyramid of number D. Trophic levels

   xA. Pyramid of biomass
   B. Pyramid of energy
   C. Pyramid of number
   D. Trophic levels

2. The ration of food energy assimilated to the food energy ingested is called:

   A. Trophic level efficiency
   B. Photosynthetic efficiency
   C. Net production efficiency
   D. Assimilation efficiency

3. The transfer of energy from one trophic level to another is governed by the 2nd law of thermodynamics. The average efficiency of energy transfer from herbivores to carnivores is:

   A. 25%
   B. 50%
   C. 10%
   D. 5%

4. The rate at which light energy is converted into chemical energy of organic molecules is the ecosystem’s:

   A. Net primary productivity
   B. Gross secondary productivity
   C. Net secondary productivity
   D. Gross primary productivity

5. The flow of materials and energy in an ecosystem is respectively:

   A. Cyclic only
   B. Cyclic and linear
   C. Linear and cyclic
   D. Linear only

6. Components of stream flow: Sources of flow to channel are:

   A. Channel interception or direct precipitation over the steam rain flow incident
   B. Surface run-off
   C. Sub-surface flow or inter-flow
   D. Base flow
   E. All of the above

7. Which group of three living organisms, given below is a link in food chain: Green plants …. Hawk:

   A. Grasshopper, frog, snake
   B. Grasshopper, rat, snake
   C. Millipedes, centipedes, sparrow
   D. Earthworm, hen, rat

8. The study of interaction between living organisms and environment in a specific area is the study of:

   A. Photobiology
   B. Phytogeography
   C. Ecosystem
   D. Phytosociology

9. All the living organisms on the earth interacting with atmosphere constitute:

   A. Biosphere
   B. Community
   C. Biome
   D. Association

10. The amount of living matter present in a component population of a particular trophic level is called:

    A. Standing crop
    B. Standing quality
    C. Both (a) & (b)
    D. Standing state