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4

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

Correct Answer :

C. devil fish


Related Questions

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In star fish the locomotary organs are

A. tube feet

B. lobopodia

C. cephalopodia

D. rhizopodia

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4

Water vascular system helps in

A. locomotion

B. respiration

C. feeding

D. all 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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4

The locomotor organs of Echinoderms is called

A. parapodia

B. pseudopodia

C. setae

D. tube feet

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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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Sea cucumber belongs to the class

A. Crinoidea

B. Asteroidea

C. Holothuroidea

D. Ophiuroidea

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Which of the following is a living fossil ?

A. Holothuria (sea cucumber)

B. Echinus (sea urchin)

C. Echittocardium (sand dollar)

D. Antedon (feather star)

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Madreporite is associated with

A. haemal system

B. digestive system

C. ambulacral system

D. reproductive system

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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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Which one of these is an Echinoderm ?

A. Sand dollar

B. Jelly fish

C. Silver fish

D. All of these

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4

Main difference between starfishes and brittle stars is in the

A. number of arms

B. structure of the ambulacral groove

C. tube feet

D. pedicellariae

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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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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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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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Which of the following systems is found in Echinoderms ?

A. Nervous system with a large brain

B. Respiratory system

C. System of internal seleton

D. Excretory system

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4

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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4

Spines of the body of Sea urchin are

A. movable

B. immovable

C. prehensile

D. all of these

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The respiratory organs in a sea star are

A. ctenidia

B. dermal branchiae

C. book lungs

D. trachea

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The generic name of 'feather star' is

A. Asterias

B. Antedon

C. Echinus

D. Ophiothrix

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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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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

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4

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 Echinoderms are marine animals with

A. an exoskeleton

B. a spiny skin

C. bilateral symmetry

D. gastrovascular cavity

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Pedicellariae are modified

A. spines

B. tube feet

C. integumentary structures

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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The larva that occurs in the development of Sea urchin is

A. pluteus

B. echinopluteus

C. bipinnaria

D. auricularia

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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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Class Holothuroidea of phylum Echinodermat a includes

A. Sea stars

B. Cake urchins

C. Sea lilies

D. Sea cucumbers

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The star fish's pyloric caeca are organs of

A. excretion

B. absorption

C. reproduction

D. respiration

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Sea cucumber belongs to class

A. Crinoidea

B. Asteroidea

C. Holothuroidea

D. Ophiuroidea