Sea cucumber
Brittle star
Feather star
Both (b) and (c)
Nervous system with a large brain
Respiratory system
System of internal seleton
Excretory system
digestive system
water vascular system
canal system
none of these
redia and cercaria
bipinnaria and brachiolaria
trochophore and aurecularia
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
parapodia
pseudopodia
setae
tube feet
bipinnaria
glochidium
auralia
echinus
sand dollar
sea cucumber
sea flies
sea horse
spines
tube feet
integumentary structures
none of these
Asteroidea
Crinoidea
Ophiuroidea
Holothuroidea
haemal system
digestive system
ambulacral system
reproductive system
mouth apparatus
exoskeleton
skeletal system
bioluminscent organ
excretion
absorption
reproduction
respiration
Antedon
Echinocardium
Ophiothrix
Pentaceros
herbivorous
omnivorous
carnivorous
none of these
coelenterates
polychaetes
echinodermates
hemichordates
Sea stars
Cake urchins
Sea lilies
Sea cucumbers
ctenidia
dermal branchiae
book lungs
trachea
Axial sinus
Dermal papillae
Tube feet
Tiedamann bodies
locomotion
respiration
feeding
all of these
Crinoidea
Asteroidea
Holothuroidea
Ophiuroidea
Sea-star
Star fish
Sea-cucumber
Sea lily
Ophiothrix
Pentaceros
Antedon
None of these
torneria
onchosphere
trochophore
bipinnaria
Sea star
sea urchin
Sea cucumber
Feather star
Schizocoelic coelom
Water vascular system
Spines in the body mass
Marine habitat
tube feet
lobopodia
cephalopodia
rhizopodia
Asterias
Antedon
Echinus
Ophiothrix
Sea cucumber
Sea lily
Sea urchin
Sea star
coelenterates
marine arthropods
echinodermates
sponges