haemal system
digestive system
ambulacral system
reproductive system
A. haemal system
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
haemal system
digestive system
ambulacral system
reproductive system
locomotion
respiration
feeding
all of these
Antedon
Echinocardium
Ophiothrix
Pentaceros
Holothuria (sea cucumber)
Echinus (sea urchin)
Echittocardium (sand dollar)
Antedon (feather star)
Sea-star
Star fish
Sea-cucumber
Sea lily
an exoskeleton
a spiny skin
bilateral symmetry
gastrovascular cavity
mouth apparatus
exoskeleton
skeletal system
bioluminscent organ
ctenidia
dermal branchiae
book lungs
trachea
Schizocoelic coelom
Water vascular system
Spines in the body mass
Marine habitat
parapodia
pseudopodia
setae
tube feet
Sand dollar
Jelly fish
Silver fish
All of these
(a) Starfish
(b) Brittle star
(c) Sea lily
(d) None of these
Star fish
Sea fan
Ship worm
None of these
Sea hares
Brittle stars
Star fishes
Sea fish
Snail
Slug
Nereis
Sea-urchin
tube feet
lobopodia
cephalopodia
rhizopodia
spines
tube feet
integumentary structures
none of these
Nervous system with a large brain
Respiratory system
System of internal seleton
Excretory system
coelenterates
marine arthropods
echinodermates
sponges
Crinoidea
Asteroidea
Holothuroidea
Ophiuroidea
Sea cucumber
Brittle star
Feather star
Both (b) and (c)
coelenterates
polychaetes
echinodermates
hemichordates
Asteroidea
Crinoidea
Ophiuroidea
Holothuroidea
Sea cucumber
Sea lily
Sea urchin
Sea star
herbivorous
omnivorous
carnivorous
none of these
bipinnaria
glochidium
auralia
echinus
sand dollar
sea cucumber
sea flies
sea horse
Sea star
sea urchin
Sea cucumber
Feather star
movable
immovable
prehensile
all of these