ECOSYSTEM Set 4

Question - 15 Maximum mark : - 15

Green plants and green sulphur bacteria, prepare their organic food themselves with the help of sunlight, are known as

Chemoautotrophs Photoautotrophs Heterotrophs Chemotrophs NULL NULL NULL

The movement of nutrient elements through various components (abiotic and biotic) of an ecosystem is called

Carbon cycle Geochemical cycle Biogeochemical cycle Chemical cycle NULL NULL NULL

Biotic community along with its interacting physical environment comprises

Phytosociology Phytogeography Ecosystem Ecology NULL NULL NULL

The relation between producers and consumers in an ecosystem can be graphically represented in the form of a pyramid called

Ecological pyramid Tropical level Pi chart Pyramid of biomass NULL NULL NULL

Energy stored at the consumer level is

Primary productivity Secondary productivity Net primary productivity Productivity NULL NULL NULL

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