21. which of the following option is correct for storage place phosphorus and nitrogen respectively ?
A. Consumer
B. Parental rock and environment
C. Environment and producers
D. Environment and parental rock
Answer : Option B
An individual ''x'' uses mashroom as food then in which trophic level mashroom and''x'' are included?
Mushroom X Foodchain
A. Secondary Primary ? Detritivorous food chain
B. Primary Secondary ? Detritivorous food chain
C. Primary Secondary ?Grazing food chain
D. Secondary Primary ?Grazing food chain
Answer : Option B
23. Which of the following is trophic level of the orchid staying on mango tree ?
24. Which age group in pyramid indicate less reproductive potential ?
A. Bell shaped
B. Triangular
C. Inverted Bell shaped
D. All of them have equal( same) potential
Answer : Option B
25. It is correct for ecosystem.......
A. Plants, Animals, Microorganisms) + Abiotic environment
B. Community formed by various species present in a particular region.
C. Animal, plants and micro- organisms.
D. Abiotic factors
Answer : Option A
26. What is the original source of energy for the living organisms ?
27. In which of the following curd eating people are included ?
28. The functional efficiency of ecosystem is effected when decomposers are removed from it, because..
A. Energy flow will stop
B. Rest components decomposetion will become faster
C. Herbivous will not get sun light
D. Flow of nutrient will stop.
Answer : Option D
29. From which of the following detritus food chain will start ?
30. Which of the following is gaseous cycle ?
A. Sulphur cycle
B. Carbon cycle
C. Phosphorous cycle
D. Nitrogen cycle
Answer : Option C