NEET Foundation-Zoology-Ecology and Environment Test-8 July 20, 2017admin0 Comments CategoriesEcology Environment NEET Foundation-Zoology-Ecology and Environment Test-8 1. In natural ecosystem decomposers include….. Only bacteria and fungi Only microscopic animals Above two types of organisms and micro-scopic animals Only the above two types of organisms 2. Ecosystem creates……… Food chain Food web Both 1 and 2 None of the above 3. An association of individuals of different species living in the same habitat and having functional interactions is called a or an ……… Ecosystem Biotic community Population Ecological niche 4. In a biotic community primary consumers are Omnivores Carnivores Detritivores Herbivores 5. If we completely remove the decomposers from an ecosystem, the ecosystem functioning will be adversely affected because…….. Mineral movement will blocked Herbivores will not receive solar energy Energy flow will be blocked Rate of decomposition of other components will be very high 6. The importance of ecosystem lies in Flow of energy Cycling of materials Both of the above None of the above 7. When big fish eats a small fish which eats water fleas supported by phytoplankton the water fleas are Producers Top consumer in this food chain Secondary consumers Primary consumers 8. In a forest ecosystem green plants are Decomposers Primary consumers Primary producers Consumers 9. Major conduit for energy flow in terrestrial ecosystem is GFC DFC Climax consumers Herbivores 10. In a biotic community, the most important factor for survival of an animal is ….. Predators Day length Soil moisture Green food 11. Which is not true regarding ecosystem ? Self sufficient unit Cyclic exchange of materials between living beings and environment Only requirement is input of energy Characterized by a major vegetation type 12. Which of the following are artificial aquatic ecosystems ? Large dams and reservoirs Lakes and canals Fishery tanks and Aquaria all of these 13. Which of the following is a functional aspect of an ecosystem ? Species composition Cycling of nutrients Flow of energy Both (2) and ( 14. About how much of the net primary productivity of a terrestrial ecosystem is eaten and digested by herbivores 1% 10% 40% 90% 15. Secondary productivity is defined as the rate of formation of new organic matter Primary consumers only 3) Secondary consumers only Tertiary consumers only All consumers 16. The rate at which new tissues are formed in producers in the ecosystem is NSP GSP NPP GPP 17. The food chain that starts from plants and goes from smaller to larger animals is Detritus food chain Saprophytic food chain Parasitic food chain Predator food chain 18. Ecological pyramids are also called as Pyramids of number Eltonian pyramids Pyramids of energy Pyramids of biomass 19. Choose the correct among the limitations of ecological pyramids A) It does not take into account some species belonging to two or more trophic levelsB) It does not accommodate a food chainC) Saprophytes are not given any place in ecological pyramids even though they play a vital role in the Ecosystem A & B B & C B only D) A & C 20. Choose the correct among the following I) Decomposition is largely an anaerobic processII) In a particular climatic condition, decomposition is slower if detritus is rich in lignin and chitinIII) Decomposition is quicker if detritus is rich in nitrogen and water soluble sugarsIV) Low temperature and aerobic environment inhibit the decomposition resulting in buildup of organic Materials I&II II & III III & IV All are correct Loading … Related posts: NEET Foundation-Zoology-Ecology and Environment Test-3 NEET Foundation-Zoology-Ecology and Environment Test-7 NEET Foundation-Zoology-Ecology and Environment Test-9 NEET Foundation-Zoology-Ecology and Environment Test-11 NEET Foundation-Zoology-Ecology and Environment Test-10 Powered by YARPP.