Read the following statements.
a. Metagenesis is observed in all coelenterates.
b. Echinoderms are exclusively marine, triploblastic, and monoecious animals.
c. Roundworms are coelomates with complete digestive tract.
d. Comb plates present in ctenophores help in locomotion.
e. Water canal system is a characteristic of sponges.

Choose the correct answer from the options given below.
1. (a), (b), (c) are correct
2. (b), (c), (d) are correct
3. (c), (d), (e) are correct
4. (d) and (e) are correct
Subtopic:  Phylum Porifera | Phylum Ctenophora & Platyhelminthes |
 61%
From NCERT
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Match List-I with List-II:
List-I List-II
a. Metameric segmentation (i) Coelenterata
b. Bioluminescence (ii) Annelida
c. Gastrovascular cavity (iii) Porifera
d. Body with pores and canals in walls  (iv) Ctenophora

Choose the correct answer from the options given below:
    (a)  (b)   (c)  (d)
1. (iv)  (iii)  (ii)   (i)
2. (ii)   (iv)  (i)   (iii)
3. (iii)   (i)   (ii)   (iv)
4. (i)    (iv)  (iii)   (ii)
Subtopic:  Phylum Porifera | Phylum Coelenterata | Phylum Annelida |
 91%
From NCERT
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How many statements are correct with respect to most of the sponges? 
(a) The cells are arranged as loose cell aggregates and exhibit cellular level of organisation 
(b) The body cells in sponges exhibit some division of labour 
(c) Any plane that passes through the central axis of the body divides sponges into two equal halves 
(d) Sponges have a water transport or canal system 
Select the correct option 
1. One  2. Two 
3. Three  4. Four 
Subtopic:  Phylum Porifera |
 63%
From NCERT
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Match List - I with List - II

 List-I  List-II
 (a) Metamerism  (i) Coelenterata
 (b) Canal system  (ii) Ctenophora
 (c) Comb Plates  (iii) Annelida
 (d) Cnidoblasts  (iv) Porifera

Choose the correct answer from the options given below:

Options: (a) (b) (c) (d)
1. iii iv ii i
2. iv i ii iii
3. iv iii i ii
4. iii iv i ii
Subtopic:  Phylum Porifera | Phylum Coelenterata | Phylum Ctenophora & Platyhelminthes | Phylum Annelida |
 82%
From NCERT
NEET - 2021
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NEET 2023 - Target Batch - Aryan Raj Singh
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Match column-I with column-II and select the correct option 
Column-I Column-II
a. Euspongia (i) Liver fluke
b. Fasciola (ii) Bath sponge
c. Ophiura (iii) Hagfish 
d. Myxine (iv) Brittle star
 
a b c d
1. (i) (ii) (iii) (iv)
2. (ii) (iv) (iii) (i)
3. (ii) (i) (iv) (iii)
4. (iv) (iii) (ii) (i)
Subtopic:  Phylum Porifera | Phylum Coelenterata | Phylum Aschelminthes |
 92%
From NCERT
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Assertion (A): Choanocytes or collar cells line the spongocoel and the canals in poriferans.
Reason (R): Poriferans possess spicules and spongin fibres.
 
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 Porifera |
 80%
From NCERT
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