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Posted By: Sanjana Member Level: Gold Posted Date: 14 Jun 2008
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2005 Molecular biology jan05 Question paper
SCHOOL OF BIOLOGY
Second Science
BL2001 - Animal Diversity
January 2005
Time allowed - 3 hours
Section A
Answer TWO questions from this section
Allow around 2 hours
Use a separate book for each answer
1. Describe the different ways of feeding in echinoderms. In particular, highlight
how these mechanisms vary in relation to habitat.
2. Write an essay on the evolution and exploitation of the mantle cavity by
molluscs.
3. What is so special about Archaeopteryx?
4. Discuss the morphological, physiological and behavioural specialisations that
have contributed to the success of modern amphibians.
5. Describe the functional anatomy of lobsters.
6. Outline the main sensory adaptations shown by fish to life in an aquatic
environment. How have these adaptations contributed to this group’s success?
Section B/
Section B
Answer ALL the questions
Allow 1 hour
Each question should take approximately 10 minutes
Answer questions in the same booklet
7. Write brief notes on EITHER hemichordates OR urochordates.
8. EITHER
With the aid of diagrams explain the differences between the coelomate,
pseudocoelomate, and acoelomate conditions.
OR
With the aid of a diagram explain how a flame cell functions.
9. List FOUR features that distinguish siphonophores and scyphozoans.
10. Briefly describe the key concepts underlying the cladistic methodology of
animal classification.
11. Write notes on THREE of the following:
Weberian apparatus
Dipnoi
Holocephali
Dura Den
Catadromous migration.
12. Draw a labelled diagram of a sipunculid worm.
__________________________
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