Which one of the following factors is biotic?

Related Mcqs:

1. These are generally, but not always, developed above the birch zone and in patches, sometimes extensive, within it, probably conditioned by edaphic and biotic factors, in Kashmir, Gilgit, Chitral and Hazara. This type ascends normally to ______ or more above the sub-alpine forests and climate must be similar but more severe than in sub-alpine forests:

   A. 140 m
   B. 150 m
   C. 160 m
   D. 170 m

2. The most interfering biotic components are:

   A. Birds
   B. Herbivores
   C. Hunters
   D. Human beings

3. Biotic components consist of:

   A. Producers only
   B. Consumers only
   C. Decomposers only
   D. All of the above

4. In a biotic community, primary consumers are:

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

5. The biotic and abiotic components of the ecosystem are connected through:

   A. Standing quality
   B. Climatic regime
   C. Transducers
   D. Humification and mineralization

6. A biotic community comprises:

   A. Plants only
   B. Animals only
   C. Plants and animals
   D. Plants or animals

7. Biotic components of an ecosystem include:

   A. Producers only
   B. Consumers only
   C. Producers and Consumers only
   D. Producers, consumers and decomposers

8. Which are the biotic components of forest ecosystem?

   A. Producers
   B. Decomposers
   C. Consumers
   D. All of the above

9. Non-biotic components can be grouped into:

   A. Lithosphere
   B. Hydrosphere
   C. Atmosphere
   D. All of the above

10. Biotic components are:

    A. Producers (Autotrophy)
    B. Macroconsumers (Heterotrophs)
    C. Microconsumers (Saprotrophs/Decomposers)
    D. All of the above