echinodea
holothuroidea
asteroidea
ophiuroidea
B. holothuroidea
sea-hares
sea-stars
devil fish
sea fans
A fresh water echinoderm
An ancient Greak ship lantern shaped structure connected with balancing system of seal lily
A masticatory apparatus connected with digestive system in sea urchin
A seive plate connected with ambulacral system in sea star
Asterias
Antedon
Echinus
Ophiothrix
Crinoidea
Asteroidea
Holothuroidea
Ophiuroidea
Schizocoelic coelom
Water vascular system
Spines in the body mass
Marine habitat
Ophiothrix
Pentaceros
Antedon
None of these
tube feet
lobopodia
cephalopodia
rhizopodia
locomotion
respiration
feeding
all of these
(a) Starfish
(b) Brittle star
(c) Sea lily
(d) None of these
bipinnaria
glochidium
auralia
echinus
echinodea
holothuroidea
asteroidea
ophiuroidea
Sand dollar
Jelly fish
Silver fish
All of these
pluteus
echinopluteus
bipinnaria
auricularia
coelenterates
marine arthropods
echinodermates
sponges
Axial sinus
Dermal papillae
Tube feet
Tiedamann bodies
Starfish
Jellyfish
Cuttlefish
Fresh water mussel
Asteroidea
Crinoidea
Ophiuroidea
Holothuroidea
Sea cucumber
Sea lily
Sea urchin
Sea star
an exoskeleton
a spiny skin
bilateral symmetry
gastrovascular cavity
Holothuria (sea cucumber)
Echinus (sea urchin)
Echittocardium (sand dollar)
Antedon (feather star)
Sea cucumber
Brittle star
Feather star
Both (b) and (c)
movable
immovable
prehensile
all of these
Nervous system with a large brain
Respiratory system
System of internal seleton
Excretory system
Crinoidea
Asteroidea
Holothuroidea
Ophiuroidea
synapta and antedon
astrias and asterina
ophiothrix and ophioderma
all of these
Sea hares
Brittle stars
Star fishes
Sea fish
parapodia
pseudopodia
setae
tube feet
Sea stars
Cake urchins
Sea lilies
Sea cucumbers
Sea-star
Star fish
Sea-cucumber
Sea lily
ctenidia
dermal branchiae
book lungs
trachea