Phylum Ctenophora

Biradial symmetry and lack of cnidoblasts are the characteristics of:

1. Starfish and sea anemone

2. Ctenoplana and Beroe

3. Aurelia and Paramecium

4. Hydra and starfish

One example of animals having a single opening to the outside that serves both as mouth as well as the anus is:

1. Octopus

2. Asterias

3. Ascidia

4. Fasciola

Which one of the following kinds of animals are triploblastic?

1. Flatworms

2. Sponges

3. Ctenophores

4. Corals

Match the following organism with their respective characteristics:

Column-I		Column-II
(a)	Pila	(i)	Flame cells
(b)	Bombyx	(ii)	Comb plates
(c)	Pleurobrachia	(iii)	Radula
(d)	Taenia	(iv)	Malpighian tubules

Select the correct option from the following:

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

Match the following group of organisms with their respective distinctive characteristics and select the correct option:

	Organisms		Characteristics
(a)	Platyhelminthes	(i)	Cylindrical body with no segmentation
(b)	Echinoderms	(ii)	Warm blooded animals with direct development
(c)	Hemichordates	(iii)	Bilateral symmetry with incomplete digestive system
(d)	Aves	(iv)	Radial symmetry with indirect development

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

Match List-I with List-II:

	List-I		List-II
A.	Pleurobrachia	I.	Mollusca
B.	Radula	II.	Ctenophora
C.	Stomochord	III.	Osteichthyes
D.	Air bladder	IV.	Hemichordata

Choose the correct answer from the options given below:
1. A-II, B-I, C-IV, D-III
2. A-II, B-IV, C-I, D-III
3. A-IV, B-III, C-II, D-I
4. A-IV, B-II, C-III, D-I