Phylum Echinodermata

Q. The adult echinoderms are ________ and the larvae are _________.

1. asymmetrical, radially symmetrical
2. radially symmetrical, bilaterally symmetrical
3. bilaterally symmetrical, radially symmetrical
4. asymmetrical, bilaterally symmetrical

Q.

Water-Vascular system is found in:

1. Sea-cucumber

2. Sea-horse

3. Sea-anemone

4. Sea-pen

Q.

Identify the correct match:

1. Antedon – sea lemon

2. Asterias – sea lily

3. Cucumaria – sea urchin

4. Ophiura – brittle star

Q. Symmetry of adult echinoderm is

1. Bilateral
2. Radial
3. Asymmetrical
4. Biradial

Q.

Tube feet are the locomotory organs in:

1. Scoliodon

2. Silver fish

3. Jelly fish

4. Star fish

Q.

Marine annelids with parapodia are:

1. Oligochaetes

2. Hirudineans

3. None of these

4. Polychaetes

Q. The proboscis gland is an excretory organ in

1. Dentalium
2. Echinus
3. Cucumaria
4. Saccoglossus

Q. The adult animal in this phylum is radially symmetrical; but its larva exhibits bilateral symmetry :

1. Coelenterata
2. Arthropoda
3. Protozoa
4. Echinodermata

Q. Match the column I with column II and choose the correct option.

$\begin{array}{ccc}& \text{Column I}& \text{Column II}\\ \text{A.}& \text{Porifera}& \text{1. Canal system}\\ \text{B.}& \text{Aschelminthes}& \text{2. Water vascular system}\\ \text{C.}& \text{Annelida}& \text{3. Muscular pharynx}\\ \text{D.}& \text{Arthropoda}& \text{4. Jointed appendages}\\ \text{E.}& \text{Echinodermata}& \text{5. Metameres}\end{array}$

1. A-2 B-3 C-5 D-4 E-1
2. A-2 B-5 C-3 D-4 E-1
3. A-1 B-3 C-5 D-4 E-2
4. A-1 B-5 C-3 D-4 E-2

Q. Assertion :Canal system is found in sponges. Reason: Starfish is a type of sponge.

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
3. Assertion is correct but Reason is incorrect.
4. Assertion is incorrect but Reason is correct.

Q.

The surface of an echinoderm body, where the mouth is formed is termed as ____.

1. Oral surface

2. Aboral surface

3. Lateral surface

4. Vascular surface

Q. Radial symmetry of echinoderms is

1. Biradial
2. Primary
3. Secondary
4. Triradial

Q. Give a one - word scientific term for the following

1. Cell lining the spongcoel of Spongilla
2. Free floating form of mollusca
3. Rasping organ of mollusca
4. Lateral appendages of Nereis

Q. The adults are radially symmetrical but larvae exhibit bilateral symmetry in

1. Cephalochordata
2. Hemichordata
3. Mollusca
4. Echinodermata

Q. Blastopore develops into the anus in

1. protostomes
2. deuterostomes
3. pseudocoelomates
4. acoelomates

Q. Which of the organisms possesses a water vascular system?

1. Sea anemone
2. Sea pen
3. Sea cucumber
4. Seahorse

Q. Star fish is a marine echinoderm. What is the symmetry seen in its larva and adult stages?

1. Pentameric radial symmetry is seen in larva and bilateral symmetry in adult
2. Bilateral symmetry is seen in larva and pentameric radial symmetry in adult
3. Pentameric radial symmetry is seen in both larva and adult stages
4. Bilateral symmetry is seen in both larva and adult stages.

Q. Which one is the common ancestral larval form of echinoderms, hemichordates and chordates?

1. Dipleurula
2. Tornaria
3. Bipinnaria
4. Trochophore

Q.

Match column A with column B and choose the correct option:
$\begin{array}{cc}Column-A& Column-B\\ A.Porifera& i.Canalsystem\\ B.Ctenophora& ii.Watervascularsystem\\ C.Annelida& iii.Combplates\\ D.Arthropoda& iv.Jointedappendages\\ E.Echinodermata& v.Metameres\end{array}$

1. A-ii, B-iii, C-v, D-iv, E-i

2. A-ii, B-v, C-iii, D-iv, E-i

3. A-i, B-iii, C-v, D-iv, E-ii

4. A-i, B-v, C-iii, D-iv, E-ii

Q. Phylum Echinodermata belongs to kingdom

1. Animalia
2. Plantae
3. None of the above
4. Both A and B

Q.

Which of the following functions are not performed by the water vascular system in Asterias?

1. Locomotion

2. Respiration

3. Food capture

4. Reproduction

Q. ............ system acts as excretory system in echinoderms.

Q. Cavity present in sponges is called as

1. Spongocoel (paragastric cavity)
2. Coelenteron
3. Schizocoelom
4. Pseudocoelom

Q. Spiny skinned animals are?

1. Arthropoda
2. Echinoderms
3. Hemichordates
4. Cyclostomes

Q. Choose the correct statements with reference to demospongiae.
(a) They are exclusively marine forms.
(b) They are colonial forms.
(c) Skeleton consists of siliceous spicules and spongin fibres.
(d) They are solitary and simple forms.

1. (a) and (d)
2. (a) and (c)
3. (b) and (d)
4. (b) and (c)

Q. State whether the following statements are true or false, Echinoderms are exclusively found in sea water

1. True
2. False

Q. Water vascular system is the characteristic of which group among the following:
(a) Porifera

Q. Echinoderms are the first phyla to develop an endoskeleton.

1. False
2. True

Q. Which among the following organisms have bilateral symmetry?

1. Star fish
2. Snails
3. Echinus
4. Sea cucumber

Q.

Select the wrong statement among the following given statements.

1. Cuttle fish and devil fish are true fishes

2. Bivalves are mostly used in commercial pearl production

3. Pila has radula and univalved shell

4. Clitellum is seen in earthworm