Which of the following is true about Neural System of Annelida members?

1. Single Ganglion is present

2. Single Ventral nerve cord is present

3. Double ventral nerve cord is present

4. Both A and B

Which of the following is the distinctive feature of Annelida?

1. Complete Digestive System

2. Closed Circulatory System

3. Metamerism

4. Presence of true Coelom

Which of the following is true for given diagram

1. Hirudinaria

2. Neresis

3. liver fluke

4. Balanoglossus

Which of the following is true for given diagram?

1. Nereis

2. Parapodia is present

3. Dioecious

4. All of these

Which of the following is true for Phylum Mollusca?

1. Largest Phylum

2. Radial Symmetry

3. Triploblastic animals

4. Segmentation present

Which of the following is true for Shells of Mollusca?

1. Secreted by outer surface of the Mantle

2. Helps in protection

3. Pearl is formed in this layer

4. All of these

Which of the following is true about Apple snail.

1. It belongs to class Gastropoda

2. Body is covered by Calcareous shell

3. Torsion present

4. All of these

Which is Correct for Devil fish?

1. Shell less animal

2. It belongs to class Cephalopoda

3. It has 8 arms

4. All of these

Which of the following is true about Mollusca?

1. Nephridia perform excretory functions

2. Gills perform respiratory functions

3. Most Mollusca have open circulatory system

4. All of these

Which of the following is true about Radula?

1. Rasping organ

2. Tongue like structure

3. Used in feeding

4. All of these