The figure shows four animals (a), (b), (c) and (d). Select the correct answer with respect to a common characteristic of two of these animals:

(a) (b)
(c) (d)

1. (c) and (d) have a true coelom
2. (a) and (d) respire mainly through body wall
3. (b) and (c) show radial symmetry
4. (a) and (b) have cnidoblasts for self-defence

Subtopic:  Phylum Coelenterata | Phylum Ctenophora & Platyhelminthes | Phylum Arthropoda | Phylum Mollusca |
 77%
From NCERT
AIPMT - 2011
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Which characteristic is true for Obelia?
1.  Metagenesis
2.  Morphogenesis
3.  Apolysis
4.  Pedogeny

Subtopic:  Phylum Coelenterata |
 92%
From NCERT
AIPMT - 1998
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Which of the following animals have scattered cells with cell–tissue grade organization:

1. Sponge

2. Hydra

3. Liver fluke

4. Ascaris

Subtopic:  Phylum Coelenterata |
 55%
AIPMT - 2000
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Match the following
 

List-I List-II
(a) Physalia i. Pearl oyster
(b) Limulus ii. Portuguese Man of War
(c) Ancylostoma iii. Living fossil
(d) Pinctada iv. Hookworm


Choose the correct answer from the options given below:

Options: (a) (b) (c) (d)
1. ii iii iv i
2. i iv iii ii
3. ii iii i iv
4. iv i iii ii
Subtopic:  Phylum Coelenterata | Phylum Aschelminthes | Phylum Arthropoda | Phylum Mollusca |
 86%
From NCERT
NEET - 2021
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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 |
 78%
From NCERT
NEET - 2021
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Metagenesis refers to?

1. The presence of different morphic forms
2. Alternation of generation between asexual and sexual phases of an organism
3. Occurrence of a drastic change in the form during post-embryonic development
4. Presence of a segmented body and parthenogenic mode of reproduction

Subtopic:  Phylum Coelenterata |
 87%
From NCERT
NEET - 2015
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Select the Taxon mentioned that represents both marine and freshwater species:

1. Echinoderms

2. Ctenophora

3. Cephalochordata

4. Cnidaria

Subtopic:  Phylum Coelenterata |
 60%
From NCERT
AIPMT - 2014
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Match List I with List II.
List I List II
A. Taenia  I. Nephridia
B. Paramoecium II. Contractile vacuole
C. Periplaneta III. Flame cells
D. Pheretima  IV. Urecose gland
Choose the correct answer from the options given below:
Options: A B C D
1. II I IV III
2. I II III IV
3. I II IV III
4. III II IV I
Subtopic:  Phylum Coelenterata | Phylum Ctenophora & Platyhelminthes | Phylum Annelida | Phylum Arthropoda |
 82%
From NCERT
NEET - 2023
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Select the correct statements:
A: Platyhelminthes are triploblastic, pseudocoelomate and bilaterally symmetrical organisms.
B: Ctenophores reproduce only sexually and fertilization is external.
C: In tapeworm, fertilization is internal but sexes are not separate.
D: Ctenophores are exclusively marine, diploblastic and bioluminescent organisms.
E: In sponges, fertilization is external and development is direct.

Choose the correct answer from the options given below:
1. (A), (C) and (D) only 2. (B), (C) and (D) only
3. (A) and (E) only 4. (B) and (D) only
Subtopic:  Phylum Porifera | Phylum Coelenterata | Phylum Ctenophora & Platyhelminthes |
 65%
From NCERT
NEET - 2023
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Match the following genera with their respective phylum :

Column I Column II
(a) Ophiura  (i) Mollusca
(b) Physalia  (ii) Platyhelminthes
(c) Pinctada  (iii) Echinodermata
(d) Planaria (iv) Coelenterata

Select the correct option :
Options: (a) (b) (c) (d)
1. iv i iii ii
2. iii iv i ii
3. i iii iv ii
4. iii iv ii i

Subtopic:  Phylum Coelenterata | Phylum Ctenophora & Platyhelminthes | Phylum Mollusca | Phylum Echinodermata |
 85%
From NCERT
NEET - 2019
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