1. Sea star-Asteroidea
2. Sea urchin-Echinoidea
3. Holothuriodea-Sea cake
4. Ophiuroidea-Brittle star
Holothuriodea-Sea cake
1. DNA
2. RNA
3. Both (a) and (b)
4. proteins
DNA
1. Locomtion
2. Sensation
3. Excretion
4. Food capturing and respiration
Sensation
1. contain DNA
2. kill bacteria
3. are small
4. bring about transduction
bring about transduction
1. Tube feet
2. Polian vesicle
3. Teidamann’s body
4. Axial sinus
Axial sinus
1. cyanophages
2. mycophages
3. phycophages
4. None of these
phycophages
1. Asteroidea
2. Ophiuroidea
3. Crinoidea
4. Echinoidea
Crinoidea
1. minerals
2. antibiotics
3. algae
4. phages
phages
1. Sea urchin
2. Asterias
3. Ophiothuria
4. Sea Anemone
Sea urchin
1. Chordata
2. Hemichordata
3. Unrochordata
4. Cephalochordata
Chordata