A. Energy flow and food chain
B. Mineral recycling and energy flow
C. Food chain and decomposers
D. Energy flow and decomposers
Related Mcqs:
- 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 - Ecosystem has two components:
A. Plants and animals
B. Weeds and trees
C. Biotic and abiotic
D. Frogs and men - The minimum number of components required for an ecosystem to survive:
A. Producer and primary consumer
B. Producer and decomposer
C. Primary consumer and decomposer
D. Primary and secondary consumer
E. Producer and secondary consumer - The biotic and abiotic components of the ecosystem are connected through:
A. Standing quality
B. Climatic regime
C. Transducers
D. Humification and mineralization - In an ecosystem in abiotic components which of the following occurs?
A. Flow of energy
B. Cycling of material
C. Consumption of materials
D. Flow of energy and cycling of materials - Biotic components of an ecosystem include:
A. Producers only
B. Consumers only
C. Producers and Consumers only
D. Producers, consumers and decomposers - Which are the biotic components of forest ecosystem?
A. Producers
B. Decomposers
C. Consumers
D. All of the above - Components of ecosystem are:
A. Abiotic
B. Biotic
C. Both (a) & (b)
D. None of these - 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 - What are the major components of the timber harvesting system?
A. Logging planning
B. Setting up of the crop to be felled
C. Felling of trees
D. Transportation
E. All of the above
