Maintenance of Biological Diversity is:

Related Mcqs:

1. The causes of loss of biological diversity are:

   A. Over hunting is perhaps the most obvious direct cause of extinction in animals, as it has affected several large and well-known species
   B. Genetic diversity as represented by genetic differences between discrete populations with wild species, is liable to reduction as result of the same factors affecting species
   C. A major, though at present largely unpredictable, change in natural environments is likely to occur within the next century as a result of large-scale changes in global climate and weather patterns
   D. All of the above

2. Biological diversity resources are:

   A. Food
   B. Pharmaceuticals
   C. Both (a) & (b)
   D. None of these

3. Other material values of biological diversity are:

   A. Many natural or semi-natural ecosystems
   B. Some of which may be high biological diversity, are of considerable benefit to man
   C. To role of forests in watershed regulation and stabilization of soils in erosion-prone areas
   D. All of the above

4. On the basis of genetic diversity, the following are differentiated with in a species:

   A. Ecads
   B. Ecotypes
   C. Populations
   D. Communities

5. Bio-diversity means:

   A. A contraction of biological diversity.
   B. The range of variation or differences among
   C. Some set of entities; biological diversity thus refers to variety within the living world
   D. All of the above

6. The types of bio-diversity are:

   A. Genetic diversity
   B. Species diversity
   C. Ecosystem diversity
   D. All of the above

7. Protection and site maintenance are:

   A. Protective measures against grazing
   B. Fire protection and controlled burning
   C. Protection against forest
   D. All of the above

8. Biological equilibrium is found among the:

   A. Producers and consumers
   B. Producers and decomposers
   C. Producers, consumers and decomposers
   D. Producers and light

9. The biological weathering occurs due to the action of:

   A. Acids
   B. Alkalies
   C. Oxygen
   D. Carbon dioxide

10. Biological control component is central to advanced agriculture production. Which of the following is used as a third generation pesticide?

    A. Pathogens
    B. Pheromones
    C. Insect repellant
    D. Insect hormone analogue