question_answer32) Edaphic factor refers to (a) water (b) soil (c) relative humidity (d) altitude
View Answer play_arrowquestion_answer34) Name an organism found as secondary carnivore in an aquatic ecosystem.
View Answer play_arrowquestion_answer35) What does the base tier of the ecological pyramid represent?
View Answer play_arrowquestion_answer39) Justify the pitcher plant as a producer.
View Answer play_arrowquestion_answer44) What is the ultimate source of energy for the ecosystems?
View Answer play_arrowquestion_answer45) Is the common edible mushroom an autotroph or a heterotrophy?
View Answer play_arrowquestion_answer46) Why are oceans least productive?
View Answer play_arrowquestion_answer48) Why are nutrient cycles in nature called biogeochemical cycles?
View Answer play_arrowquestion_answer49) Give any two examples of xerarch succession.
View Answer play_arrowquestion_answer50) Define self sustain ability
View Answer play_arrowquestion_answer52) What is common to earthworm, mushroom, soil mites and dung beetle inan ecosystem?
View Answer play_arrowquestion_answer53) Organisms at a higher trophic level have less energy available. Comment.
View Answer play_arrowquestion_answer54) The number of trophic levels in an ecosystem are limited. Comment.
View Answer play_arrowquestion_answer55) Is an aquarium a complete ecosystem?
View Answer play_arrowquestion_answer56) What could be the reason for the faster rate of decomposition in the tropics?
View Answer play_arrowquestion_answer57) Human activities interfere with carbon cycle. List any two such activities.
View Answer play_arrowquestion_answer62) Primary productivity varies from ecosystem to ecosystem. Explain?
View Answer play_arrowquestion_answer64) What is an incomplete ecosystem? Explain with the help of suitable example.
View Answer play_arrowquestion_answer65) What are the shortcomings of ecological pyramids in the study of ecosystem?
View Answer play_arrowquestion_answer66) How do you distinguish between mummification and mineralization?
View Answer play_arrowquestion_answer67) Fill in the trophic levels (1, 2, 3 and 4) in the boxes provided in the figure.
View Answer play_arrowquestion_answer73) Write a short note on pyramid of numbers and pyramid of biomass.
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