Which of the following has the largest amount of energy?
A. Producers
B. Primary consumers
C. Secondary consumers
D. Disinfectants
Food levels in an ecosystem are called:
A. Trophic levels
B. Consumer levels
C. Producer levels
D. Herbivores levels
The snakes are included under:
A. Saprophytes
B. Primary consumers
C. Second trophic level
D. None of these
The term ‘bio-coenosis’ was coined by:
A. Tansley
B. Warming
C. Carl Mobius
D. S.C.Pandya
Trophic levels are formed by:
A. Only plants
B. Only animals
C. Only carnivores
D. Organisms linked in food chains
Biotic components of an ecosystem include:
A. Producers only
B. Consumers only
C. Producers and Consumers only
D. Producers, consumers and decomposers
Which is the most stable ecosystem?
A. Mountain
B. Desert
C. Forest
D. Ocean
The part of earth in which life exists is known as:
A. Lithosphere
B. Biosphere
C. Atmosphere
D. Hydrosphere
Energy enters into the ecosystem through:
A. Herbivores
B. Carnivores
C. Producers
D. Decomposers
