1. Describe the adaptive radiation in Polychaeta by citing examples.
2. Describe the biological rhythm in non-chordates.
3. Explain the life cycle of malarial parasite in mosquito and human hosts with suitable diagram.
4. a) Enumerate the principal structural specializations of Annelida towards an efficient locomotion. How is the locomotion in a leech different from that in Nereis and earthworm?
b) How is walking movement in arthropods related to the number and arrangement of limbs?
5. Discuss the non chordates yielding industrial products.
6. Discuss the different larval forms found in echinoderms.
7. a) What are the salient features of Porifera?
b) How are coral reefs formed?
8. Write short notes on the following:
(a) Communication through visual in insects
(b) Chemoreceptors in non-chordates
(c) Water vascular system in starfish
(d) Strobillaiton
9. Describe the five kingdom classifications as proposed by Whittaker and discuss its limitations.
1. (a) Define the following:
(i) Homeostasis
(ii) Pseudopodia
(iii) Hermaphroditism
(v) Taxis
(v) Binary fission
b) Describe various locomotory structures found in Annelids.
2. (a) Describe few characteristic features of the phylum Mollusca.
(b) What are chemoreceptors? Explain different types of chemoreceptors found in metazoans.
3. Differentiate between the following:
(i) Prokaryotes and Eukaryotes
(ii) Pseudocoelom and Coelom
(iii) Oligochaetes and Polychaetes
(iv) Asexual and sexual reproduction
4. (a) What is epitoky? Explain the importance phenomenon in organisms?
(b) Describe adaptive radiation in Arthropods.
5. Write short notes on the following:
(i) Coral reefs
(ii) Polymorphism
(iii) Nerve Cell
(iv) Role of hormones in insects
6. Describe the structural organization of body of members of class Insecta. Describe the types of mouth parts present in them.
7. (a) Honey bees show a very peculiar way of communication. Explain.
(b) What are parasitic platyhelminthes? Describe life cycle of any one of them.
8. Explain open and closed type of circulatory systems found in higher metazoans.
9. Describe the way in which non-chordates are beneficial to humans.
10. (a) Name some social insects. Describe their important characteristics.
(b) Describe the various pattern of sexual reproduction found in nonchordates.
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