Identify the incorrect statement:

1. Medusa of Scyphozoans are called as jelly fishes.

2. Ctenophores are the largest animals that move with the help of cilia.

3. Flat worms that have a digestive cavity, have an incomplete gut.

4. Nematodes are covered with thick cuticle that does not moult.

Match each item in Column I with one item in Column II and chose your answer from the codes given below:

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) 

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

Select the incorrect statement.

(1) Periplaneta has compound eyes.

(2) Earthworm shows segmentation.

(3) Ascaris shows sexual dimorphism

(4) Liver fluke has a complete alimentary canal

Some salient features and phyla of organisms are given below. Select the option which shows the correct combination of organism, its phylum and salient features.

Eggs and Sperm are produced by the same individual in case of

1. Leech

2. Sponges

3. Pleurobrachia

4. All of the above

Ctenophora is an exclusively marine phylum, the other such phylum is

1. Mollusca

2. Echinodermata

3. Porifera

4. Coelenterata

Ctenophorans are commonly referred to as

1. Flatworms

2. Comb jellies

3. Sea anemone

4. Cnidaria

The number of ciliated rows present in Comb jellies are

1. 8

2. 6

3. 4

4. 9

Radial symmetry is seen in

1. Mollusca

2. Chordata

3. Porifera

4. Ctenophora