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CBSE Class 12 Biology Practice Paper Pre-Board 2015

Nov 10, 2014 17:33 IST

    Find CBSE Class 12 Biology Practice Paper for Pre-Board 2015. This paper is a collection of questions from the previous year question papers, along with fresh new questions and has been framed keeping the Students' perspective in mind. This will help the Students by building a sound concept before their Pre-Board Examination.

    Q. List any two ways of measuring the standing crop of a tropic level        

    Q. Mention one positive and one negative application of amniocentesis.

    Q. Name of pioneer and the climax species in water body. Mention the changes observed in the biomass and the biodiversity of the successive seral communities developing in the water body.                                                  

    Q. Define gross primary productivity (GPP) and net primary productivity (NPP). Give the range of net primary productivity in different ecosystems of the world?

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