A. Flow of energy
B. Cycling of matters
C. Both (a) & (b)
D. None of the above
Related Mcqs:
- The importance of ecosystem lies in:
A. Cycling of materials
B. Flow of energy
C. Both (a) & (b)
D. None of the above - In a terrestrial ecosystem such as forest maximum energy lies in which trophic level?
A. T1
B. T2
C. T3
D. T4 - 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 - 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 - The pyramid of biomass in a shallow pond ecosystem is:
A. Inverted
B. Upright
C. Rhomboidal
D. Liver - 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 - In natural ecosystem, decomposers include:
A. Only two types of organisms
B. Only two types of organisms plus macroscopic animals
C. Only microscopic animals
D. Only bacteria and fungi - Forest Ecosystem means:
A. The produces in forest are actual at different strata from the ground level to the canopy of trees.
B. The litter and consequently the humus layers is thick
C. Both (a) & (b)
D. None of these - Source of energy in an ecosystem is:
A. Sun
B. ATP
C. Sugar made by plant
D. Green plant - Which of the following is expected to have the highest value (gm/m2/yr) in a grassland ecosystem?
A. Tertiary Production
B. Gross Production (GP)
C. Net Production (NP)
D. Secondary Production
