The Echinoderms are marine animals with
an exoskeleton
a spiny skin
bilateral symmetry
gastrovascular cavity
Correct Answer :
B. a spiny skin
Related Questions
The star fish's pyloric caeca are organs of
excretion
absorption
reproduction
respiration
The generic name of 'feather star' is
Asterias
Antedon
Echinus
Ophiothrix
Which one of the following Echinoder-mate is found in fresh water ?
Ophiothrix
Pentaceros
Antedon
None of these
Aristotle's Lantern is present in
Sea cucumber
Brittle star
Feather star
Both (b) and (c)
The animal that moves with tube feet is
Snail
Slug
Nereis
Sea-urchin
Madriporite or seive plate is found in
Sea hares
Brittle stars
Star fishes
Sea fish
The larva of holothuroide is
torneria
onchosphere
trochophore
bipinnaria
The common name of Antedon is
Sea star
sea urchin
Sea cucumber
Feather star
Which one of these is an Echinoderm ?
Sand dollar
Jelly fish
Silver fish
All of these
Star fishes are
herbivorous
omnivorous
carnivorous
none of these
Spines of the body of Sea urchin are
movable
immovable
prehensile
all of these
Main difference between starfishes and brittle stars is in the
number of arms
structure of the ambulacral groove
tube feet
pedicellariae
In which of the Echinoderm, the arms, spines and pedicellaria are absent ?
Sea cucumber
Sea lily
Sea urchin
Sea star
In star fish the locomotary organs are
tube feet
lobopodia
cephalopodia
rhizopodia
Which of the following is a living fossil ?
Holothuria (sea cucumber)
Echinus (sea urchin)
Echittocardium (sand dollar)
Antedon (feather star)
Aristotle's lantern is
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
One of these is a stalked echinoderm
Antedon
Echinocardium
Ophiothrix
Pentaceros
The terrestrial species of Echinodermata is *
(a) Starfish
(b) Brittle star
(c) Sea lily
(d) None of these
The larvae of sea stars are
redia and cercaria
bipinnaria and brachiolaria
trochophore and aurecularia
none of these
Pedicellariae are modified
spines
tube feet
integumentary structures
none of these
Water vascular system helps in
locomotion
respiration
feeding
all of these
The star fish zygote develops into a
bipinnaria
glochidium
auralia
echinus
Animals which exhibit radial, pen-tamerous symmetry in adults, and bilateral symmetry amongst larvae, are
sea-hares
sea-stars
devil fish
sea fans
Ambulacral system or water vascular system is typically found in
coelenterates
marine arthropods
echinodermates
sponges
Sea cucumber belongs to the class
Crinoidea
Asteroidea
Holothuroidea
Ophiuroidea
In star fish which of the following has dual function of locomotion and respiration
Axial sinus
Dermal papillae
Tube feet
Tiedamann bodies
Brittle star belongs to the class
Asteroidea
Crinoidea
Ophiuroidea
Holothuroidea
The locomotor organs of Echinoderms is called
parapodia
pseudopodia
setae
tube feet
Class Holothuroidea of phylum Echinodermat a includes
Sea stars
Cake urchins
Sea lilies
Sea cucumbers
A very well developed brain is present in
Starfish
Jellyfish
Cuttlefish
Fresh water mussel