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4

The Echinoderms are marine animals with

A. an exoskeleton

B. a spiny skin

C. bilateral symmetry

D. gastrovascular cavity

Correct Answer :

B. a spiny skin


Related Questions

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Madriporite or seive plate is found in

A. Sea hares

B. Brittle stars

C. Star fishes

D. Sea fish

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Madreporite is associated with

A. haemal system

B. digestive system

C. ambulacral system

D. reproductive system

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In which of the Echinoderm, the arms, spines and pedicellaria are absent ?

A. Sea cucumber

B. Sea lily

C. Sea urchin

D. Sea star

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A very well developed brain is present in

A. Starfish

B. Jellyfish

C. Cuttlefish

D. Fresh water mussel

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Animals which exhibit radial, pen-tamerous symmetry in adults, and bilateral symmetry amongst larvae, are

A. sea-hares

B. sea-stars

C. devil fish

D. sea fans

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Pedicellariae are modified

A. spines

B. tube feet

C. integumentary structures

D. none of these

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In Sea urchin, Aristotle's lantern is a part of

A. mouth apparatus

B. exoskeleton

C. skeletal system

D. bioluminscent organ

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4

The larvae of sea stars are

A. redia and cercaria

B. bipinnaria and brachiolaria

C. trochophore and aurecularia

D. none of these

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4

Sea cucumber belongs to the class

A. Crinoidea

B. Asteroidea

C. Holothuroidea

D. Ophiuroidea

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Auricuiaria is the larva of

A. echinodea

B. holothuroidea

C. asteroidea

D. ophiuroidea

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4

Star fishes are

A. herbivorous

B. omnivorous

C. carnivorous

D. none of these

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Animals with radial symmetry in adults and bilateral symmetry in larvae are

A. coelenterates

B. polychaetes

C. echinodermates

D. hemichordates

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4

In star fish the locomotary organs are

A. tube feet

B. lobopodia

C. cephalopodia

D. rhizopodia

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Aristotle's Lantern is present in

A. Sea cucumber

B. Brittle star

C. Feather star

D. Both (b) and (c)

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Water vascular system helps in

A. locomotion

B. respiration

C. feeding

D. all of these

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Which is not true of Echinoderms?

A. Schizocoelic coelom

B. Water vascular system

C. Spines in the body mass

D. Marine habitat

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Aristotle's lantern is

A. A fresh water echinoderm

B. An ancient Greak ship lantern shaped structure connected with balancing system of seal lily

C. A masticatory apparatus connected with digestive system in sea urchin

D. A seive plate connected with ambulacral system in sea star

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The terrestrial species of Echinodermata is *

A. (a) Starfish

B. (b) Brittle star

C. (c) Sea lily

D. (d) None of these

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Stone canal in star fish is associated with

A. digestive system

B. water vascular system

C. canal system

D. none of these

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Water vascular system is found in

A. Star fish

B. Sea fan

C. Ship worm

D. None of these

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Ambulacral system or water vascular system is typically found in

A. coelenterates

B. marine arthropods

C. echinodermates

D. sponges

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Brittle star belongs to the class

A. Asteroidea

B. Crinoidea

C. Ophiuroidea

D. Holothuroidea

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4

Pentamerous echinoderms with five slender flexible arms sharply marked off from the central disc are

A. synapta and antedon

B. astrias and asterina

C. ophiothrix and ophioderma

D. all of these

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Spines of the body of Sea urchin are

A. movable

B. immovable

C. prehensile

D. all of these

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One of these is a stalked echinoderm

A. Antedon

B. Echinocardium

C. Ophiothrix

D. Pentaceros

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Bipinnaria larva is found in the development of a

A. Sea-star

B. Star fish

C. Sea-cucumber

D. Sea lily

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The locomotor organs of Echinoderms is called

A. parapodia

B. pseudopodia

C. setae

D. tube feet

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The larva of holothuroide is

A. torneria

B. onchosphere

C. trochophore

D. bipinnaria

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The animal that moves with tube feet is

A. Snail

B. Slug

C. Nereis

D. Sea-urchin

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In star fish which of the following has dual function of locomotion and respiration

A. Axial sinus

B. Dermal papillae

C. Tube feet

D. Tiedamann bodies