Match column-I with column-II and choose the correct option.
Column I Column II
a. Asterias  (i) Notochord in larval tail
b. Balanoglossus  (ii) Spiny body
c. Ascidia  (iii) Cloaca present
d. Hyla  (iv) Worm-like marine animal

    a     b    c     d
1. (i)   (ii)  (iii)  (iv)
2. (iv)  (ii)  (iii)  (i)
3. (ii)   (iii)  (iv) (i)
4. (ii)   (iv)  (i)   (iii)
Subtopic:  Phylum Echinodermata | Phylum Hemichordata | Phylum Chordata | Study of Amphibians |
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Read the following statements.

(a) Metagenesis is observed in Helminths.
(b) Echinoderms are triploblastic and coelomate animals.
(c) Round worms have organ-system level of body organization.
(d) Comb plates present in ctenophores help in digestion.
(e) Water vascular system is characteristic of Echinoderms.

Choose the correct answer from the options given below:

1. (a), (d) and (e) are correct

2. (b), (c) and (e) are correct

3. (c), (d) and (e) are correct

4. (a), (b) and (c) are correct

Subtopic:  Phylum Coelenterata | Phylum Ctenophora & Platyhelminthes | Phylum Aschelminthes | Phylum Echinodermata |
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Match each item in Column I with one item in Column II and chose your answer from the codes given below:

Column I

Feature

Column II

Phylum

(a) Lateral line system

(b) Water vascular system

(c) Radula

(d) Comb plates

(e) Parapodia

(i) Ctenophora

(ii) Mollusca

(iii) Echinodermata

(iv) Osteichthyes

(v) Annelida

Codes

             (a)  (b)  (c)  (d)  (e) 

1.          (i)  (ii)  (iii)  (iv)  (v) 

2.          (iv)  (iii)  (ii)  (i)  (v)   

3.          (iv)  (iii)  (i)  (v)  (ii)

4.          (iii)  (ii)  (i)  (v)  (iv) 

Subtopic:  Phylum Ctenophora & Platyhelminthes | Phylum Annelida | Phylum Mollusca | Phylum Echinodermata | Comparative study of Cartilagenous & Bony Fishes |
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Assertion (A): Echinoderms are spiny-bodied animals.
Reason (R): Their exoskeleton is made up of calcareous ossicles.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic:  Phylum Echinodermata |
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Assertion (A): Echinoderms possess an endoskeleton of calcareous ossicles.
Reason (R): These organisms are marine or freshwater dwellings.
 
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.

 
Subtopic:  Phylum Echinodermata |
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Which of the following groups of three animals, each is correctly matched with their one characteristic morphological feature:
Animals Morphological features
(a) Scorpion, spider, cockroach Ventral solid nerve cord
(b) Centipede, prawn, sea-urchin Joined appendages
(c) Cockroach, Locust, Taenia Metameric segmentation
(d) Liver fluke, sea-anemone, sea-cucmber Bilateral symmetry
Subtopic:  Phylum Arthropoda | Phylum Mollusca | Phylum Echinodermata |
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Column-I contain larval stages and column-II contain the groups to which they belong. Match them correctly and choose the right option"
Column-I Column-II
A. Planula i. Annelida
B. Tornaria II. Mollusca
C. Trochophore iii. Arthropoda
D. Bipinnaria iv. Hemichordata
E. Glochidium v. Echinodermata
vi. Coelenterata
1. A = vi, B = iv, C = i, D = v, E = ii
2. A = ii, B = v, C = i, D = iv, E = vi
3. A = v, B = iv, C = iii, D = ii, E = i
4. A = iv, B = iii, C = ii, D = i, E = v
Subtopic:  Phylum Annelida | Phylum Arthropoda | Phylum Mollusca | Phylum Echinodermata | Phylum Hemichordata | Phylum Chordata |
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