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1
NEET 2013 (Karnataka)
MCQ (Single Correct Answer)
+4
-1
Change Language
Which two distinct microbial processes are responsible for the release of fixed nitrogen as dinitrogen gas (N2) to the atmosphere ?
A
Anaerobic ammonium oxidation, and denitrificatrion
B
Aerobic nitrate oxidation, and nitrite reduction
C
Enteric fermentation in cattle, and nitrogen fixation by Rhizobium in root nodules of legumes
D
Decomposition of organic nitrogen, and conversion of dinitrogen to ammonium compounds
2
NEET 2013
MCQ (Single Correct Answer)
+4
-1
Change Language
Secondary productivity is rate of formation of new organic matter by :
A
Parasite
B
Decomposer
C
Producer
D
Consumers
3
NEET 2013
MCQ (Single Correct Answer)
+4
-1
Change Language
Which one of the following processes during decomposition is correctly described ?
A
Catabolism – Last step in the decomposition under fully anaerobic condition
B
Leaching – Water soluble inorganic nutrients rise to the top layers of soil
C
Fragmentation –Carried out by organisms such as earthworm
D
Humification – Leads to the accumulation of a dark coloured substance humus which undergoes microbial action at a very fast rate
4
NEET 2013
MCQ (Single Correct Answer)
+4
-1
Change Language
Natural reservoir of phosphorus is :
A
Fossils
B
Rock
C
Sea water
D
Animal bones
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Cell - The Unit of Life Biomolecules Cell Cycle and Cell Division Sexual Reproduction in Flowering Plants Microbes in Human Welfare Anatomy of Flowering Plants Transport in Plants Mineral Nutrition Respiration in Plants Biotechnology: Principles and Processes Biodiversity and Conservation The Living World Biological Classification Morphology of Flowering Plants Photosynthesis in Higher Plants Principles of Inheritance and Variation Molecular Basis of Inheritance Strategies for Enhancement in Food Production Biotechnology and It's Applications Organisms and Populations Environmental Issues Plant Kingdom Plant Growth and Development Ecosystem
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