M.Sc-M.Sc Botany 1st Year Paper - II : SYSTEMATICS OF ANGIOSPERMS AND PLANT ECOLOGY (Acharya Nagarjuna University - Center for Distance Education, Guntur, Andhra Pradesh-2013)

(DBOT 02) NR M.Sc. (Previous) DEGREE EXAMINATION, MAY - 2013 
First Year 
Botany 
Paper - II : SYSTEMATICS OF ANGIOSPERMS AND PLANT ECOLOGY 

Time : 03 Hours                                                                            Maximum Marks : 80

Section - A (5 × 8 = 40) 
Answer any Five of the following 

1) Mesophytes. 
2) Anatomy vs Taxonomy. 
3) Nomenclature. 
4) Food chains. 
5) Phosphorus cycle. 
6) Biological magnification. 
7) Continental Drift. 
8) Noise pollution. 
Section - B (4 × 10 = 40) 
Answer All of the following 9) a) Describe the Plant distribution in the past and present. 
OR 
b) Compare and contrast the Pre-Darwinian and Post-Darwinian systems of classification. 10) a) Give an account on the evolution of Taxonomic categories. 
OR 
b) Explain the role of phyto-chemistry and geography in Taxonomy. 11) a) Describe the Biogeochemical cycles with reference to carbon and nitrogen. 
OR 
b) Describe the Population interaction and natural regulation of populations. 12) a) Describe the alternate and additional energy sources. 
OR 
b) Describe the Floristic regions of India. 
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