Ecology and General Silviculture

A. Commensals
B. Herbivores
C. Fauna and flora
D. Planktons

A. A community of organisms interacting with one another
B. The abiotic component of an area
C. The part of the earth and its atmosphere where living organisms exist
D. A community of organisms together with the environment in which they live

A. Artificial ecosystem
B. Forest ecosystem
C. Natural ecosystem
D. Grassland ecosystem

A. On the lithosphere surface
B. In the hydrosphere
C. In the lithosphere, hydrosphere and atmosphere
D. In the lithosphere and hydrosphere

A. Checking pollution
B. Fertility of soil
C. Stabilizing the ecosystem
D. Improving food-web

A. Savana ecosystem
B. Taiga ecosystem
C. Tundra ecosystem
D. None of the above

A. Only bacteria and fungi
B. Only microscopic animals
C. The above two types of organisms plus macroscopic animals
D. Only the above two types of organisms

A. Closely related species occupying the same niche
B. Closely related species occupying different niche
C. Unrelated species occupying the same niche
D. Species occupying different overlapping ecosystems

A. Both open and closed unit depending upon the biomass present
B. Closed unit
C. Open unit
D. Both open and closed unit depending upon community type

A. Holocoene
B. Cherposem
C. Biosystem
D. Geobiocoenosis