Starfish
Jellyfish
Cuttlefish
Fresh water mussel
C. Cuttlefish
ctenidia
dermal branchiae
book lungs
trachea
Asteroidea
Crinoidea
Ophiuroidea
Holothuroidea
Star fish
Sea fan
Ship worm
None of these
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
movable
immovable
prehensile
all of these
Antedon
Echinocardium
Ophiothrix
Pentaceros
tube feet
lobopodia
cephalopodia
rhizopodia
an exoskeleton
a spiny skin
bilateral symmetry
gastrovascular cavity
Sea cucumber
Sea lily
Sea urchin
Sea star
number of arms
structure of the ambulacral groove
tube feet
pedicellariae
Schizocoelic coelom
Water vascular system
Spines in the body mass
Marine habitat
torneria
onchosphere
trochophore
bipinnaria
Sea-star
Star fish
Sea-cucumber
Sea lily
Sea cucumber
Brittle star
Feather star
Both (b) and (c)
herbivorous
omnivorous
carnivorous
none of these
Sand dollar
Jelly fish
Silver fish
All of these
Nervous system with a large brain
Respiratory system
System of internal seleton
Excretory system
bipinnaria
glochidium
auralia
echinus
Sea star
sea urchin
Sea cucumber
Feather star
parapodia
pseudopodia
setae
tube feet
Asterias
Antedon
Echinus
Ophiothrix
Crinoidea
Asteroidea
Holothuroidea
Ophiuroidea
Crinoidea
Asteroidea
Holothuroidea
Ophiuroidea
Ophiothrix
Pentaceros
Antedon
None of these
mouth apparatus
exoskeleton
skeletal system
bioluminscent organ
(a) Starfish
(b) Brittle star
(c) Sea lily
(d) None of these
sand dollar
sea cucumber
sea flies
sea horse
redia and cercaria
bipinnaria and brachiolaria
trochophore and aurecularia
none of these
excretion
absorption
reproduction
respiration
spines
tube feet
integumentary structures
none of these