Which is the most stable ecosystem?
A. Desert
B. Ocean
C. Mountain
D. Forest
The pyramid of number around a tree would be:
A. Straight
B. Horizontal
C. Inverted
D. Indefinite
The living organisms of all ecosystems collectively constitute:
A. Producers
B. Decomposers
C. Consumers and decomposers
D. Biosphere
Which of the following ecosystem has highest gross primary productivity:
A. Grassland
B. Coral reefs
C. Mangroves
D. Rain forest
To eat and being eaten relationship is called:
A. Food chain
B. Food web
C. Symbiosis
D. Phagocytosis
Ecosystem contains:
A. Producers
B. Consumers
C. Decomposers
D. All of the above
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
In a terrestrial ecosystem such as forest maximum energy lies in which trophic level?
A. T1
B. T2
C. T3
D. T4
