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

Which of the following represents Mollusca?

1. Cuttlefish

2. Devil Fish

3. Star fish

4. More than one is correct

How many of the following is not the member of Mollusca?

1. 3

2. 8

3. 2

4. 4

How many of the following is not the member of Mollusca?

Sea hare, Sea cucumber, Sea lily, Sea urchin, Sea-pen, Sea fan, Sea anemone

1. 7

2. 6

3. 1

4. 4

Which of the following is Mollusk?

1. Cuttle fish

2. Chiton

3. Cucumaria

4. More than one option is correct

Which of the following is correct about given Diagram?

1. Closed Circulatory System

2. Foot has evolved into arms

3. Shells present

4. Both A and B

Which of the following is true for Echinodermata?

1. Bilateral Symmetry- Larvae

2. Radial symmetry- larvae

3. Bilateral Symmetry- Adult

4. Asymmetric

Echinoderms are

(1)Triploblastic

(2)Coelomate animals

(3)all marine

(4)All of the above

The distinctive features of the Echinoderms are

1. Spines on body

2. Radial symmetry

3. Water vascular System

4. Both 2 and 3