How many of the characters given below are true for echinoderms?

1. 3
2. 4
3. 5
4. 6

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) 

Which of the following is not an Echinoderm character?

Echinoderms are not characterized by:
 

Which of these is not a coelenterate?

1. Sea pen

2. Sea fur

3. Sea anemone

4. Sea lily

Closed circulatory system is not found in

1. octopus

2. tunicates

3. echinoderms

4. squids

Which of the following is not an annelid?

1. Leech

2. Earhtworm

3. Sea mouse

4. Sea cucumber

In which of the following animals the adults have pentamerous radial symmetry while their larvae are bilaterally symmetrical?

1. Arthropods

2. Molluscs

3. Echinoderms

4. Annelids

Ambulacral grooves are absent in the living forms of the Class

1. Crinoidea

2. Asteroidea

3. Ophiuroidea

4. Echinodermata

Retrogressive metamorphosis occurs in

1. Hemichordata

2. Cephalochordata

3. Urochordata

4. Vertebrata