The pyramid of biomass is variable in some:
A.Grassland ecosystems
B.Pond ecosystems
C.Parasitic ecosystems
D.Forest ecosystems
Category: Agriculture Ecology and General Silviculture Mcqs
If corbon dioxide is withdrawn from the biosphere, which organism would first experience negative effect?
A.Primary consumers
B.Producers
C.Secondary consumers
D.Tertiary consumers
The non-green plants are as important as the green plants because they:
A.Cause human disease
B.Cause diseases of other plants
C.Are useful in several industries
D.Bring about decomposition of dead animals and plant remains
The minimum number of components required for an ecosystem to survive:
A.Producer and primary consumer
B.Producer and decomposer
C.Primary consumer and decomposer
D.Primary and secondary consumer
E.Producer and secondary consumer
The incorporation of minerals by microbes is called:
A.Mineralization
B.Humification
C.Nutrient immobilization
D.Microbe immobilization
Which of the following habitats is most unsuitable for primary productivity:
A.Meadow
B.Forested river bank
C.Cave
D.Pond
Every ecosystem must have a continuous external source of:
A.Energy
B.Oxygen
C.Living organism
D.Bacteria
Which of the following world is related to Homo sapiens?
A.Herbivore
B.Carnivore
C.Autotroph
D.Omnivore
If organisms are arranged according to predator-prey relationship one always finds more of prey species then of predator. This is called a:
A.Food web
B.Pyramid of numbers
C.Succession
D.Predator-prey relationship
When peacock eats snakes which eat insects thriving on green plants, peacock is:
A.A primary consumer
B.A primary dcomposer
C.Final decomposer
D.The apex of the food pyramid
