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Retrogressive Metamorphosis

Retrogressive Metamorphosis in Urochordates Metamorphosis is a change from the juvenile to adult stage in which larval stage is quite different from the adult stage. In retrogressive metamorphosis the larva possesses advanced characters which are lost during the development and the adult is either sedentary or degenerated with primitive characters. Urochordate adults, being sedentary show degenerative characters while the free swimming tadpole larva shows advanced chordate characters which are lost during metamorphosis. Parasitic crustaceans, like Sacculina and copepod parasites and stylopids and scale insects (Insecta) also show retrogressive metamorphosis. Retrogressive Metamorphosis in Herdmania The tadpole larva of Herdmania is only 1-2 mm long when it hatches out of the egg. It does not feed and hence has only 3 hours of survival during which it has to swim about in search of a suitable substratum for attachment. The larva needs advanced features for its free swimming existence,...
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Anthropology Optional Test series 2018

Hello friends  We are Going to start Online test series for anthropology optional For mains 2018. Test series is on weekly basis, every Sunday question paper will be posted on Blog. Each test contain questions of 150 marks. Equal weightage for Paper 1 and Paper 2. Pattern of paper is strictly on UPSC basis. Schedule Detailed Schedule for the commencement of tests will be posted on 08 July 2018. Feedback and suggestions are welcomed by you contact Me for queries, suggestions and feedback. Features  2 Times revision of Anthropology Syllabus. That will be finished 3 weeks earlier to Mains 2018. Peer review and Feedbacks. One full mock paper 2 week before mains 2018. Entire initiative is free of Cost.
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Anthropology test week 4

Week-4 Instructions:- There are Eight questions divided in Two sections. All questions are compulsory. Adhere to world limit wherever specified. The number of marks carried by a question is indicated against it.                              Paper I Q:-1 Write Notes on the following in about 150 words each: (10X5 =50) a) Monotheism and Religion b) Neo-evolutionism c) Language d) Structural functionalism e) Totemism Q:-2 Give the various anthropological theories. Whic theory is most relevant in term of defining society and why? (20) ing Q:-3 Discuss the concept of people's participation in planned development. (10) Q:-4 (a) In what ways economics and economic anthropology differs. (10) (b) Bring out the contribution of Tyler and Conklin in development of cognitive theory. (15) (c) Give the various tools of data collection and interpretation. Why is data analysis important in anthropology? (20) ...
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