Question 561 The cybernatics of an ecosystem refers to? A) Harvest index B) A feed back mechanism C) Regulation of equilibrium D) Reverse energy flow No Details
Question 562 The flow of materials and energy in an ecosystem is respectively? A) Cyclic only B) Cyclic and linear C) Linear and cyclic D) Linear only No Details
Question 563 The pyramid of biomass in a shallow pond ecosystem is? A) Inverted B) Upright C) Rhomboidal D) Liver No Details
Question 564 The biotic and abiotic components of the ecosystem are connected through? A) Standing quality B) Climatic regime C) Transducers D) Humification and mineralization No Details
Question 565 The pyramid of number in a forest ecosystem is? A) Rhombiodal B) Upright C) Inverted D) Linear No Details
Question 566 The taiga ecosystems lie in the? A) Alpine zone B) Sub-alpine aone C) Temperate zone D) Sub-tropical zone No Details
Question 567 In a parasitic food chain which trophic level is represented by bugs and lices? A) T4 B) T3 C) T2 D) T1 No Details
Question 568 According to Odum, the percentage of net primary production of total light intake is? A) 10% B) 0.15% C) 1% D) 1.50% No Details
Question 569 In a stabilized ecosystem the P/R ratio is? A) One B) Less than one C) More than one D) Any of these No Details
Question 570 Which of the following is the smallest unit? A) Biosphere B) Ecosphere C) Ecosystem D) Biome No Details