The living steady state has a self-regulatory mechanism which is:

Related Mcqs:

1. 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

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

   A. Law of limiting factors
   B. Liebig’s law of minimum
   C. Laws of thermo dynamics
   D. Shelford’s law of tolerance
   E. Biogenetic law

3. 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

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

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

5. 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

6. The living organisms of all ecosystems collectively constitute:

   A. Producers
   B. Decomposers
   C. Consumers and decomposers
   D. Biosphere

7. 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

8. Most outstanding danger at present for the survival of living beings on earth is:

   A. Radiation hazard
   B. Desertification
   C. Deforestation
   D. Gleization

9. The component of a living cell affected by the pollutant SO2 is:

   A. Nucleus
   B. All cell membrane system
   C. Cell wall
   D. Plasmodesmata

10. The oldest known living tree is the Bristlecone pine named “Methusela” at 3050 m (10,000 ft) in the ________ , confirmed as 4700 years old:

    A. California
    B. Washington
    C. New York
    D. None of these