M.Sc Delhi University zoology answer key


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Parasitic adaptation of Taenia

Taenia Parasitic adaptations Tapeworms live as internal parasites and they have to make several adjustments for the same. The following are few of the adaptations made by these tapeworms to make their life easy in their hosts. Presence of enzymatic resistant covering A hard covering called as tegument covers the body of these tape worms. Tegument is enzyme resistant and it protects all the internal organs from the digestive actions of the alkaline fluids of the host. On the other hand tegument is permeable to water and other nutrients. Absence of locomotory organelles This parasite lacks organs for locomotion. As there is no need for any locomotory organs both the adult and larval forms lack cilia or flagella. Osmotic pressure The osmotic pressure inside the body is higher than that of the surrounding host tissue or fluid. This helps the parasite to reside conveniently in the host body. Presence of hooks and suckers for attachment For the attachment purpose a scolex...
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Animal physiology By Eckert

Description: Eckert Animal Physiology is the essential text for courses exploring the structure, function and evolution of animals. The new Fourth Edition , revised, redesigned and updated, builds on Roger Eckert's earlier success in establishing this book as a classic. Comparing examples and experimental data across a wide variety of animal groups, the authors emphasize the book's central theme: how the bodies of animals function and how evolution has adapted them to their environment. Clear, balanced and beautifully illustrated, this book sets the standard of excellence in the field. " Animal Physiology develops the major ideas in a simple and direct manner...Examples are selected from a broad spectrum of animal life, ranging from protozoa at one end to our species and other vertebrates at the other end ...the authors have produced a balanced and up-to-date treatment of animal function." Entomologia Generalis Supplement: Transparency masters           ...
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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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Anthropology Test Week 2

Week 2 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) 1) Secondary structure of DNA 2) Rhodesian man 3) Lower palaeolithic Culture 4) Chromosome walking 5) Javanicus Q:-2 Discuss the locomotive behaviour of prehistoric human primates and state how does it help in understanding the structural and functional correlations of their forelimb structure. 20 Q:-3 Comment on mendelian principles and their applications in genetic analysis. (15) Q:-4 Mutation is the hidden force behind evolution, justify the statement with suitable examples and discuss about sources of mutation. (20)                                Paper - II Q:-1 Write notes on the follow...
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