Microorganism living in our intestine and feeding on excreta is:

Related Mcqs:

1. The Escherichia cells in a human excreta number in:

   A. Thousands
   B. Hundreds
   C. Billion
   D. Millions

2. The lower most layer of atmosphere in which man and other living organisms exist is called:

   A. Thermosphere
   B. Mesosphere
   C. Stratospheres
   D. Troposphere

3. Plants and animals living in a particular area consitute:

   A. Flora and fauna
   B. Community
   C. Ecosystem
   D. Ecology

4. The study of interactions between living organisms and environment is called:

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

5. 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

6. 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

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

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

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

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

9. A group of plants living together under similar or dissimilar environmental conditions is called:

   A. Vegetation
   B. Flora
   C. Species
   D. Community

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