A. Net production
B. Secondary production
C. Net storage
D. Net primary production
Related Mcqs:
- The gross primary production is maximum in the following ecosystem:
A. Open sea
B. Grasslands and pastures
C. Coniferous forests
D. Tropical and sub-tropical forest - Which of the following ecosystem has highest gross primary productivity:
A. Grassland
B. Coral reefs
C. Mangroves
D. Rain forest - In a comparative study of grassland ecosystem and pond ecosystem it may be observed that:
A. Primary and secondary consumers are similar
B. Both biotic and abiotic components are different
C. The biotic components are almost similar
D. The abiotic components are almost similar - Exotic species, which brought for plantation from some other country to our country or even from one ecosystem to other ecosystem are called, as exotic species like:
A. Pinus nigra – Japan
B. Euralyptus – Australia
C. Polunia – China
D. All of the above - From gross production of autotrophs, according to Lindemann, how much energy in gcal/cm2/year is used in respiration and decomposition respectively:
A. 78.2, 29.3
B. 78.2, 3.5
C. 29.3, 3.5
D. 23.9, 5.3 - Although temperature are high in the plains and go as low as minus 12.
A. November – December
B. December – January
C. January – February
D. None of these - Presence of SO2 in atmosphere is indicated by:
A. Mosses
B. Liver worts
C. Lichens
D. Ferns - The major floods in Pakistan have caused losses worth _____ million and are responsible for unsufficiency of food and subsequent higher import bills in the year to follow:
A. Rs.80,000
B. Rs.90,000
C. Rs.75,000
D. None of these - The word ecosystem was coined by:
A. Daubenmire/R.Misra/Koestle
B. Tansley
C. Weaver and Clements
D. Odum/Kormondy - The source of energy in an ecosystem is:
A. sugar stored in plants
B. Light received from the sun
C. Heat liberated during fermentation
D. Heat liberated during respiration
The correct answer to the question: "The gross production minus losses in an ecosystem is indicated as:" is "Net primary production".
