Indira Gandhi National Open University General IGNOU TEE 2020 June Lse - 09 (Animal Diversity - 1) question paper model question papers



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Posted Date: 02 Jun 2021      Posted By:: Shubham Jain    Member Level: Silver  Points: 3 (₹ 2)

2020 Indira Gandhi National Open University General B.Sc Life science IGNOU TEE 2020 June Lse - 09 (Animal Diversity - 1) question paper Question paper



Course: B.Sc Life science   University/board: Indira Gandhi National Open University

Are you in the BSc course of Ignou and looking for previous year question papers? Here is the question paper of Lse - 09 (Animal Diversity 1) of June 2020 session. Feel free to download it as it is 100% free and stay tuned for more such.



Q1. (a) Differentiate between any three of the following pairs: [6 marks]
(i) Acellular and Cellular organisms
(ii) Biting-chewing and Sucking types of mouth parts
(iii) Open and Closed types of circulatory system
(iv) Taxis and Kinesis.
(b) Match the following:
(c) Choose the appropriate 'option given in the parentheses. [4 marks]
(i) (Robert Hooke/Schleiden) discovered 'cells' in 1665.
(ii) (Atolls/Barrier) reefs consist of a ring-shaped reef enclosing an open lagoon.
(iii) Sacculina belongs to the order (Rhizocephalan/Decapodal) (iv) The typical gastropod shell is (symmetrical/asymmetrical).
Q2 (a) Differentiate between prokaryotes and eukaryotes. [7 marks]
(b) Discuss the origin and evolution of metazoan. [8 marks]
Q3. (a) Describe the characteristic features of different classes of animals belonging to Phylum Porifera. [7 marks]
(b) What are coral reefs? Explain types and formation of coral reefs.
Q4. (a) Describe the process of torsion in gastropods. [7 marks]
(b) What are the characteristics of cephalopods that are unique to them and make them distinct from other animals? [8 marks]
Q5. (a) Explain coelom and metamerism in annelids. [8 marks]
(b) Describe the chief variants of mechanoreceptors of non-chordates and explain as to how they function.
Q6 (a) Explain the concept of neurosecretion and describe neurosecretory system in non-chordates. [8 marks]
(b) Only with the help of labelled diagrams describe the male and female reproductive organs of scorpion. (No description is required.)
7. Write short notes on any three of the following: [15 marks]
(a) Visual signals in nonchordates
(b) Blood fluke and its life cycle
(c) Prevention and control of Arthropod pests.
(d) Formation of Pearl.



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