Largest living invertebrate is?

Wed,March 14, 2018 12:10 AM

1.Coelom is lined on all sides by..

1. ectoderm 2. mesoderm
3. endoderm 4. ectoderm and endoderm

2. Read the Following statements..

A. A summetrical animals cannot be cut in to two equal parts (antimers) in any plane
B. Most sponges and adult gastro podes are a symmetrical
C. A summetry cannot be said to be an adaptation/ advantage to an organism
D. Most of the asymmetrical organisms develop complex sensory and locomotor functions

Which of the above are true?
1. B, C, D 2. A, C, D
3. A, B, D 4. A, B, C

3. Which one of the following statements is wrong

1. Insects have one pair of antenna
2. Prawns have two pairs of antenna
3. Millipodes possess two pairs of appendages in each segment of the body
4. Animals belonging to the phylum porifera have nematocyst

4. Match the Following

enus common name
A. Euplectella I. Dead mans finger
B. Hyalonema II. Venus flower basket
C. Euspongia III. Glass - rope sponge
D. Chalina IV. Bath sponge

The correct atch is
1. A- II, B-IV, C- III, D- I
2. A- III, B-II, C- I, D- IV
3. A- II, B-III, C- I, D- IV
4. A- II, B-III, C- IV, D- I

5. What is the range of length of sponges

1. I mm - 10 mm
2. I cm - 1 metre
3. I mm - 100 mm
4. i metre - 10 metre

6. Assertion (A): Physalia is a polymorphic form

Reason (R): Physalia has different types of zooids
1. Both(A) and (R) are correct, (R) is the correct explanation of (A)
2. Both(A) and (R) are correct, (R) is not correct explanation of (A)
3. (A) is true but (R) is falls
4. A) is falls but (R) is true

7. this is not a cnidarian

1. obelia 2) Jelly fish
3. sea anemone 4) Beroe

8. Flame cells of flatworms help in

1) Osmoregulation 2) Digestion
3) Reproduction 4) excretion
1) (A) only is correct
2) (A) and (C) are correct
3) (B) only is correct
4) (B) and (C) are correct

9. Match the following characters of ctenophora

List- I List - II
A. Summetry I. Diploblastic
B. Body wall II. Sexual mode only
C. Reproduction III. Locomotory
D. Comb plates IV. Radial

The correct match is
1. A-IV, B-I, C-II, D-III
2. A-I, B-IV, C-III, D-II
3. A-IV, B-II, C-I, D-III
4. A-II, B-IV, C-III, D-I

10. Third stage larva of Wuchereria bancrofti carried by culex mosquito is called

1. cysticercus 2. microfilaria
3. merozoite 4. trophozoite

11. The ctenophores are classified on the basis of

1. Body shape
2. Biolumine scence
3. Parellel cells
4. Aboral tentacles

12. Assertion (A): Earthworms are hermaphrodites
Reason (R): Both the male and female reproductive organs are present in the same individual

1. Both (A) and (R) are False
2. (A) is False (R) is true
3. Both (A) and (R) are correct, (R) is the correct explanation of (A)
4. Both (A) and (R) are correct, but (R) is not the correct explanation to (A)

13. Phylum Annelida includes over

1. 15,000 Species
2. 9,000 Species
3. 60,000 Species
4. 9,00,000 Species

14. Read the following statements regarding chilopodes and identify correct combination

A.. ................. to as centipedes
B. Each trunk segment bears two pairs of legs
C. Respiration by trachea
D. Excretion by molpighiantubules

The correct ones are
1. All except (A)
2. All except (C)
3. All except (D)
4. All except (B)

15. Study the Following statements about monoplacophora

A. Shell is spirally coiled
B. Represented by Neomenia
C. Heart is unique with two pairs of atria and a paie of ventricles
D. Serial repetition of internal organs

The correct statements are
1. All except (A) 2. (A) only
3. All except (D)
4. All except (A), (B)

16. The body cells in cockroach discharge their nitrogenous wast in the haemolymph mainly in the form of.

1. Urea 2. Ammonia
3. Potassium urate
4. Callcium carbonate

17. The chitonous exoskeleton of arthropodes is formed by the polymerisation of?

1) keratin sulphate & chondroitin sulphate 2) N-acetyl glucosamine
3) D-glucosamine 4) Lipoglycans

18. Which one of the following matching pairs is wrong?

1) Mollusca- Pseudocoel
2) Chidaria- Nematocyst
3) Annelida- Chlorogogencells
4) Echinodermata- Water vascular system

19. Arrange the following echinoderms belong to the classes crinoidea, Echinoidea, Holothuroidea and Opiuroidea respectively in a sequence.

A. Synapta B. Neometra
C. Clypeaster D. Ophiothrix

Choose the collect order

1) D—> A—> C—> B
2) A—> B—> C—> D
3) C—> A—> D—> B
4) B—> C—> A—> D

20. Read the statements regarding echinoderms and choose the correct option.

A. All are marine with organ system level of organisation
B. Adults are bilaterally symmetrical
C. They are dioecious
D. Fertilisation is internal and indirect development is observed
E. Triploblastic and acoelomate animals
1) A, C are correct 2) E is correct 3) A, C and E are correct
4) A, E are correct

21. Common character of all vertebrates without exception is?

1) body divided into head, trunk, tail
2) Two pairs of limbs
3) exo skeleton 4) Presence of skull

22. A jawless fish, which lays eggs in fresh water and whose ammocoetes larvae after metamorphosis return to ocean is?

1) entatretus 2) myxine 3) neomyxidae 4) petromyzon

23. Choose the correct statement.

1) All mammals are viviparous
2) all reptiles have a three chambered heart
3) All pisces have gills covered by an operculum
4) All cyclostomes do not possess jaws and paired fins

24. The number of digits in the limb used for walking by reptiles are?

1) 4 2) 2 3) 5 4) 6

25. Which one of the following group of animals is homeo thermic?

1) birds 2) fishes
3) reptiles 4) amphibians

26. Who has opposable thumb?

1) Platypus 2) kangaroo 3) mole 4) lemur

27. Which of the following animals is not viviparous?

1) whale 2) elephant
3) platypus 4) flying fox (bat)

28. In hemichordates buccal diverticulum extends in to the?

1) pharynx 2) proboscis
3) trunk 4) ventral ridge

29. Match the items of both columns correctly

Column-1 column-2
A. Echene is 1. Sea horse
B. Betta splendens 2. Angel fish
C. Pterophyllum 3. Suckur fish
D. Hippocampus 4. Saimese fighting fish

1) A-2, B-1, C-4, D-3
2) A-3, B-4, C-2, D-1
3) A-3, B-2, C-1, D-4
4) A-3, B-1, C-4, D-2

30. Birds are glorified reptiles because the birds evolved from the reptiles and also they share these characters with reptiles.

1) poikilothermic, anamniotic eggs, epidermal exoskeleton
2) poikilothermic, amniotic eggs, epidermal exoskeleton
3) Homeothermic, amniotic eggs, dermal exoskeleton
4) epidermal exoskeleton, amniotic eggs, uricotelism

31. Assertion (A): Mammals have relatively large brain when compared to that of other animals in relation to body size
Reason (R): Number of optic lobes is four in the mammals and two in other vertebratesThe correct answer is..

1) Both A, R are true, R is correct explanation of A
2) Both A, R are true, but R is not correct explanation of A
3) Only A is true, R is false
4) Neither A nor R is true

32. The sound producing organ in mammals is?

1) glottis 2) syrinx
3) larynx 4) pharynx

33. Snakes are placed in the order squamate along with?

1) chelonians 2) sphenodon 3) crocodiles 4) lizards

34. the number of cranial nerves in the reptiles (except snakes) is?

1) 8 pairs 2) 10 Pairs
3) 12 Pairs 4) 20 Pairs

35. Largest living invertebrate is?

1) loligo 2) sepia
3) octobus 4) archileuthis




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