Assignment 1(TMA)Block 1 and 2

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LSE-09

Assignments 1, 2 & 3

2005

Dear Student,

As explained in the Programme Guide for B.Sc, you will have to do 3 assignments for the elective course in Animal Diversity – I (LSE – 09). All the three assignments are Tutor Marked Assignments (TMA). The block-wise distribution of assignments is as follows:

Assignment – 1(TMA)Block 1 and 2

Assignment – 2 (TMA)Block 3 and 4

Assignment – 3(TMA)Block 1 to 4

The instructions for doing the assignments are provided in the Programme Guide under Section 7.1 – Assignment. You should read the instructions carefully before you start doing these assignments.

Please submit your assignments as follows:

Date of Submission

Where to Send

Answer sheets received after the due date shall not be accepted.

We advise you to retain a copy of your assignments.

Wishing you good luck.

ASSIGNMENT – 1

(Tutor Marked Assignment)

Course Code : B.Sc./LSE-09

Assignment Code: LSE-09/AST-1/TMA-1/2005

Max. Marks : 100

1.Name the various levels of organisation seen in organisms and explain how each successive level is more advanced than the one preceeding it. (5)

2.a)Describe the distinctive features of protozoans.

b)Explain why a protozoan may be considered very complex even though composed of only a single cell. (5+5)

3.a)How are the following diseases spread among humans?

1) Giardiasis

2) Kala azar

3) Sleeping sickness

4) Malaria

b)Outline the general life cycle of the organism that causes malaria. (4+6)

4.Distinguish between among the following

a) Adaptation and homeostasis

b) Prokaryotes and eukaryotes

c) Species and genus(2+2+1)

5.Describe the 5 kingdom classification of living organisms. What are its limitations?

(6+4)

6.Describe the structural organisation of a generalized mollusc. (10)

7.Describe the characters of Crustacea with names of the classes under the sub-phylum relating their salient features. (10)

8.Discuss the characteristic features of phylum Echinodermata and mention the important characters of various classes under the phylum. (10)

9.Define skeleton and differentiate between exoskeleton, endoskeleton and hydrostatic skeleton of non-chordates. (2+8)

10.Give the distinguishing characters of phylum Cnidaria and classify them with examples. (10)

11.Describe the characters of phylum Onychophora and their affinities.(10)

ASSIGNMENT – 2

(Tutor Marked Assignment)

Course Code : B.Sc./LSE-09

Assignment Code: LSE-09/AST-2/TMA-2/2005

Max. Marks : 100

1.Describe the excretory organs and their functions among the various groups of non-chordates. (10)

2.Distinguish between open and closed types of circulatory system among non-chordates. (10)

3.Describe the phenomenon of flight in insects.(10)

4.Draw the labeled diagrams of the book lung of a spider and tracheal system of an insect. (10)

5.What are respiratory pigments? Discuss their importance in respiration. (4+1)

6.Describe what is nerve-net and why is it considered to be the primitive condition?

(3+2)

7.Describe the major endocrine structures in annelids, molluscs, insects and crustaceans. (10)

8.Explain the importance of alternation of generations in non-chordates. (5)

9.What do you mean by migration? Describe the process and significance of migration in insects? (2+8)

10.Explain endogenous and exogenous biological rhythms.(5)

11.Describe the ways in which helminth parasites complete their life cycle and are transmitted from one host to another. (10)

12.Describe the usefulness of non-chordates as source of food. (10)

ASSIGNMENT – 3

(Computer Marked Assignment)

Course Code : B.Sc./LSE-09

Assignment Code : LSE-09/AST-3/TMA-3/2005

Max. Marks : 100

1.Describe the social organisation in insects with the help of an example.(10)

2.Describe various modes of feeding and digestion in sponges and coelenterates.

(10)

3.Explain the mode of formation of coral reef and their significance.(10)

4.Describe with the help of diagrams how the insect mouthparts are adapted for their various feeding habits. (10)

5.Describe with the help of diagrams the locomotory structures and mechanism of locomotion in annelids. (10)

6.With the help of suitable diagrams describe the photoreceptor organs found in non-chordates. (10)

7.Describe the neurosecretory system in non-chordates. (10)

8.Explain the process of asexual reproduction in non-chordates.(10)

9.Write shorts notes on the following:

(i)Insects as household pests(5)

(ii)Biological clocks(5)

(iii)Filariasis (5)

(iv)Silk (5)

1.Latin names of animal taxa above genus level are:

1) always written in italics.

2) never written in italics.

3) written starting with capital letter.

4) always underlined.

2.Match the following and select the correct option from the key given below.

i)Moneraa)autotrophic eukaryote.

ii)Protistab)Multicellular heterotrophic, no cell wall, respond to stimuli.

iii)Fungic)single celled prokaryotes, no nucleus.

iv)Plantaed)Multicellular eukaryotes, no photosynthesis.

v)Animaliae)single celled eukaryotes.

Key

1) i) – c; ii) – e; iii) – a; iv) – d; v) – b.

2) i) – c; ii) – e; iii) – d; iv) – a; v) – b.

3) i) – d; ii) – e; iii) – a; iv) – b; v) – c.

4) i) – a; ii) – c; iii) – b; iv) – d; v) – e.

3.Which of the following are homologous organs?

1) Wings of insects and birds

2) Hands of man and wings of bats

3) Exoskeleton of beetles and exoskeleton of turtle

4) Gills of fish and lungs of whales

4. The only character which is common among all protozoans is that they:

1) are microscopic

2) are free living

3) are unicellular

4) reproduce asexually

5.Match the following and select the correct answer from the key.

a)Thecai)cytoskeleton and cell membrane

b)Shell ii)loose covering through which appendages protrude out

c)Loricaiii)closely fitting hard structure around plasma membrane

d)Pellicleiv)bell shaped loose covering

Key

1) a – iii); b – ii); c – iv); d – i)

2) a – i); b – ii); c – iv); d – iii)

3) a – i); b – ii); c – iii); d – iv)

4) a – iii); b – iv); c – ii); d – i)

6.Thin branched extensions of ectoplasm in a protozoan are known as:

1) Lobopodium

2) Reticulopodium

3) Axopodium

4) Filopodium

7.Kinetostome and infraciliary system is a characteristic of:

1) phylum – Ciliophora

2) phylum – Apicomplexa

3) phylum – Sarcomastigophora

4) phylum – Ascetospora

8.If an organism can be divided in not more than two equal halves then it is said to be

1) radially symmetrical

2) spherically symmetrical

3) asymmetrical

4) bilaterally symmetrical

9.Which of the following are schizocoelomates?

1) Platyhelminthes, nematodes, arthropods

2) Annelids, arthropods, molluscs

3) Echinoderms, arthropods, molluscs

4) Chordates, echinoderms, arthropods

10.In which animal the system of spaces connecting the inhalent pores or ostia with the exhalent oscula is called canal system?

1) Coelenterates

2) Sponges

3) Cestodes

4) Nematodes

11.In which phylum two forms of individuals are found?

1) Porifera

2) Cnidaria

3) Ctenophora

4) Platyhelminthes

12.Which phylum shows no polymorphism?

1) Protozoa

2) Porifera

3) Ctenophora

4) Cnidaria

13.Animals belonging to which phylum are true coelomates?

1) Porifera

2) Ctenophora

3) Annelida

4) Arthropoda

14.In which animal locomotion is performed by peristaltic movement and setae are used for anchoring the body?

1) Nereis

2) Chaetopterus

3) Arenicola

4) Pheretima

15.Which animal is the parasitic barnacle living in crabs?

1) Cyclops

2) Candona

3) Sacculina

4) Nebalia

16.Which phylum comprises snails, clams and squids?

1) Annelida

2) Arthropoda

3) Mollusca

4) Echinodermata

17.Which animal has eight shell plates covered by mantle?

1) Neopilina

2) Chiton

3) Aplacophoran

4) Laoma

18.Body of which animal is enclosed within a bilobed mantle and in a two-valved shell?

1) Dentalium

2) Mytilus

3) Octopus

4) Doris

19.Which part of skin secretes shell in molluscs?

1) Periostac layer

2) Connective tissue

3) Ciliated epithelium

4) Mantle

20.In which organism different shapes of spicules are found?

1) Coelenterates

2) Sponges

3) Platyhelminthes

4) Nematodes

21.Name the colony of organisms in which three types of individuals (zooids) are formed?

1) Leueosolenia

2) Obelia

3) Euplectella

4) Hyalonema

22.Name the annelid in which suckers are locomotory structures?

1) Hirudinea

2) Polycheates

3) Oligochaetes

4) Acoelomates

23.In which arthopods cephalic, thoracic and abdominal appendages occur?

1) Insecta

2) Arachnida

3) Crustacea

4) Uniramia

24.In which animal foot is used as a creeping and crawling organ?

1) Aplysia

2) Chiton

3) Cardium

4) Sigaretus

25.In which organism canal system is used for feeding, respiration and excretion?

1) Coelenterates

2) Flatworms

3) Polychaetes

4) Sponges

26.Which coelenterate feeds on fishes?

1) Hydra

2) Obelia

3) Anthozoans

4) Tubipora

27.Which insect has mandibulate types of mouth parts?

1) Cockroach

2) Butterfly

3) Mosquito

4) Honeybee

28.In which arthropod respiration takes place by means of book lungs?

1) Insect

2) Spider

3) Crustaceans

4) Centipedes

29.Which insect possess abdominal gills for respiration?

1) Cockroach

2) Mayfly

3) Honeybee

4) Butterfly

30.Which respiratory pigment contains copper?

1) Haemoglobin

2) Chlorocruorins

3) Haemerythrins

4) Haemocyanins

31.In which animal ladder type of nervous system is found?

1) Planarian flatworms

2) Annelids

3) Arthropods

4) Molluscs

32.Which below mentioned receptor in non-chordate metazoans is involved in perception of gravity?

1) Trichoid srensilium

2) Campaniform sensilium

3) Stretch receptor

4) Statocyst

33.Which organism possesses simplest eye?

1) Polycheate

2) Planarian worm

3) Leech

4) Octopus

34.Which below mentioned organ forms the neurohaemal organ in crustaceans?

1) Corpus cardiacum

2) Corpus allatum

3) X-organs

4) Sinus gland

35.Which endocrine gland of insect produces the hormone ecdysone?

1) Sinus gland

2) X-organ

3) Y-organ

4) Prothrocic gland

36.Which endocrine organ in insect produces juvenile hormone?

1) Corpora cardiaca

2) Corpora allata

3) Prothoracic gland

4) X-organ

37.In which protozoan plasmotomy is observed?

1) Amoeba

2) Euglena

3) Opalina

4) Paramecium

38.In which animals budding takes the form of stolon?

1) Poriferans

2) Platyhelminthes

3) Cnidarians

4) Nematodes

39.In which below mentioned animal on cutting into half the missing half will regrow in each piece to produce a complete animal?

1) Syllis

2) Chaetopterus

3) Linckia

4) Planarians

40.Which of the following species of honey bee cannot be domesticated?

1) Apis indica

2) Apis florae

3) Apis dorsata

4) Apis mellifera

41.Which of the following is mulberry-silk worm?

1) Phylosamia ricini

2) Bombyx mori

3) Antheraea assamia

4) Antheraea paphia

42.The best known edible oyster is:

1) C. aucullata

2) C. discoidea

3) C. madrasensis

4) Ostrea

43.What do you call the daily rhythm such as feeding, drinking and sleeping that follows a cycle of approximately twenty four hours?

1) Lunar rhythm

2) Tidal rhythm

3) Circadian rhythm

4) Solar rhythm

44.Which crustacean comes to feed at night and releases bioluminescent substances (luciferin) into water which attracts the prey?

1) Crematogaster

2) Danaus

3) Cypridina

4) Odontosyllis

45.Male of which animal constructs silken balloons as nuptial gifts?

1) House fly

2) Balloon fly

3) Dogfly

4) Damseffly

46.Name the lung parasite of human being?

1) Paragonimus

2) Schistosoma

3) Taenia

4) Hymenolopis

47.Name the common pin worm of children?

1) Ascaris lumbricoides

2) Trichuris trichiura

3) Enterobius vermicularis

4) Trichnella spiralis

48.Which fly spreads Kala Azar?

1) Pediculus

2) Phlebotomus

3) Monomorium

4) Periplanata

49.Which country discovered the usefulness of silk?

1) India

2) Korea

3) China

4) Japan

50.What percentage of sucrose is found in honey?

1) 1%

2) 2%

3) 3%

4) 4%

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