The gross primary production is maximum in the following ecosystem:
A.Open sea
B.Grasslands and pastures
C.Coniferous forests
D.Tropical and sub-tropical forest
Category: Agriculture Ecology and General Silviculture Mcqs
In lake ecosystem, the pyramid of biomass is:
A.Upright
B.Inverted
C.Anything possible
D.None is correct
The word ecosystem was coined by:
A.Daubenmire/R.Misra/Koestle
B.Tansley
C.Weaver and Clements
D.Odum/Kormondy
An ecosystem may be defined as:
A.A localized association of several plants and animals
B.Different communities of plants, animals and microbes, together with their physico-chemical environments
C.Different communities of plants and microbesm plus their physico-chemical environments
D.None of the above
Carnivores are:
A.Usually primary consumers
B.Usually secondary consumers
C.Usually decomposers rather than consumers
D.Usually secondary or tertiary consumers
Mark the correct statement:
A.Phagotrophs are transducers
B.Some herbivores are converters
C.Microconsumers are saprotrophs
D.All are correct
When a big fish eats a small fish, which easts water-fleas supported by phytoplankton, the water leas are:
A.Primary consumers
B.Producers
C.Secondary consumers
D.Top consumers in this food chain
A complex of several species and communities in various stages of succession maintained under similar climatic conditions is known as:
A.Biome
B.Environmental complex
C.Biological spectrum
D.Biological clocks
The transfer of energy from organism to organism is a natural community establishes:
A.Food chains
B.Biological control
C.Natural barriers
D.All the above
Tip of ecological pyramid is occupied by:
A.Herbivores
B.Carnivores
C.Producers
D.None of these
