The number of producers and consumers in an ecosystem is mutually controlled by a:

Related Mcqs:

1. In a forest ecosystem, the numerical relationship between the producers and herbivores:

   A. Producers more than herbivores
   B. Producers equal to herbivores
   C. Producers less than herbivores
   D. Variable

2. In a comparative study of grassland ecosystem and pond ecosystem it may be observed that:

   A. Primary and secondary consumers are similar
   B. Both biotic and abiotic components are different
   C. The biotic components are almost similar
   D. The abiotic components are almost similar

3. Exotic species, which brought for plantation from some other country to our country or even from one ecosystem to other ecosystem are called, as exotic species like:

   A. Pinus nigra – Japan
   B. Euralyptus – Australia
   C. Polunia – China
   D. All of the above

4. The number of primary producers within a specified area world be maximum in:

   A. Pond ecosystem
   B. Grassland ecosystem
   C. Desert ecosystem
   D. Forest ecosystem

5. In a biotic community, primary consumers are:

   A. Herbivores
   B. Detrivores
   C. Carnivores
   D. Omnivores

6. The primary consumers are described as:

   A. Herbivores
   B. Converters
   C. Transducers
   D. All of these

7. These belong to the category of primary consumers:

   A. Snakes and frogs
   B. Water insects
   C. Eagle and snakes
   D. Insects and cattle

8. The two major functional components of an ecosystem are:

   A. Energy flow and food chain
   B. Mineral recycling and energy flow
   C. Food chain and decomposers
   D. Energy flow and decomposers

9. The pyramid of numbers in a grassland ecosystem will be:

   A. Linear
   B. Upright
   C. Irregular
   D. Inverted

10. Food levels in an ecosystem are called:

    A. Trophic levels
    B. Consumer levels
    C. Producer levels
    D. Herbivores levels