Which of the following is Mollusc?

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

Water Vascular system helps in

1. Locomotion

2. Food capture and transport

3. Respiration

4. All of these

How many of the following statement is true for Water Vascular System?

(1)It is composed of a central ring canal from which radial canals extend

(2)Tube like appendages called tube feet is present

(3)It is a modification of one of the several coelomic spaces.

(4)It works like hydraulic system.

(5) Water enters the Water Vascular System through a madreporite.

(6) When the muscles in the tube feet contract the tube foot bends  and pull the animal forward.

1. 6

2. 5

3. 4

4. 3

Which of the following is incorrect about Echinoderms?

1. Protostomous

2. Deuterostomous

3. Pentaradially symmetrical

4. Spiny skin

Which of the following is true about Digestive system of Echinoderms?

1. Mouth is Ventral

2. Anus is Dorsal

3. Digestive System is complete

4. All of the above

Which is not true for Echinoderms?

1. Mouth is Dorsal

2. Anus is Ventral

3. Calcerous exoskeleton

4. All of these