Symbiosis means:

Related Mcqs:

1. The term symbiosis was proposed by:

   A. Mc Dougal
   B. Warming
   C. Odum
   D. de Bary

2. Symbiosis is beneficial to:

   A. The host
   B. The parasite
   C. Of mutual benefit
   D. Not beneficial

3. Which of the following means synecology?

   A. Study of single species
   B. Study of different species
   C. Both (a) & (b)
   D. None of these

4. Mesophytes means:

   A. Are ordinary plants growing under average conditions
   B. The occupy intermediate conditions between xerophyte and hydrophytes
   C. Some trees and stress with deciduous leaves show marked seasonal differences
   D. All of the above

5. Biosphere reserves means:

   A. The protected land and coastal areas
   B. That are approved under the Man and the Biosphere
   C. In conjunction with the Conception on International Trade in Endangered Species (CITES)
   D. All of the above

6. Irregular shelter, wood system means:

   A. If canopy is opened out evenly in making regeneration felling
   B. If the canopy is opened out by creating scattered gaps which are subsequently extended over the whole area
   C. If the canopy is opened out gradually and irregularly with a long regeneration period, resulting in a more uneven aged forest
   D. None of these

7. Regeneration means:

   A. Replacement of one crop by the other
   B. Rotation of crops
   C. Both (a) & (b)
   D. None of these

8. Sensitivity analysis means:

   A. While evaluating a certain project we have used a certain cost certain yield estimate and certain price increase estimates
   B. In all cases our assumption may not prove true
   C. Both (a) & (b)
   D. None of these

9. Stream flow or discharges means:

   A. It is quantity of water flowing in the stream or channel
   B. Quantity, quality and timing of water yields are mostly affected by man
   C. Both (a) & (b)
   D. None of these

10. Albedo means :

    A. The ratio of the amount of solar radiation (or visible range of radiation) reflected by a surface
    B. The amount incident on it, also expressed as a percentage
    C. Both (a) & (b)
    D. None of these