Phylum Echinodermata

Q.

What is the difference between Urochordata and Cephalochordata?

Q.

What is the gastrulation process?

Q.

Select the taxon mentioned that represents both marine and freshwater species?

1. Ctenophora

2. Cephalochordata

3. Echinoderms

4. Cnidaria

Q.

The water vascular system is a distinctive feature of?

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.

Are sponges unicellular?

Q.

Are jellyfish triploblastic?

Q.

An animal with water vascular system.

Q. Calcareous ossicles form the

1. exoskeleton of echinoderms
2. endoskeleton of echinoderms
3. endoskeleton of cnidarians
4. exoskeleton of sponges

Q.

Water vascular system is found in

1. Sea anemone

2. Sea pen

3. Sea urchin

4. Sea horse

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.

Echinoderms are named so due to presence of

1. Arms

2. Spines

3. Pedicellariae

4. Tube feet

Q. Which one of the following groups of three animals each is correctly matched with their one characteristic morphological feature?
$\begin{array}{cc}\text{Animals}& \text{Morphological feature}\\ \text{A. Liver fluke, sea anemone,}& \text{Bilateral symmetry}\\ \text{sea cucumber}& \\ \text{B. Centipede, prawn, sea urchin}& \text{Jointed appendages}\\ \text{C. Scorpion, spider, cockroach}& \text{Ventral solid nerve cord}\\ \text{D. Cockroach, locust, Taenia}& \text{Metameric segmentation}\end{array}$

1. A
2. B
3. C
4. D

Q. Echinoderms have endoskeletons made of ossicles.

1. calcareous
2. chlorinated
3. sulphurous
4. ferrous

Q. Water vascular system is the characteristic feature of which of the following phyla?

1. Porifera
2. Echinodermata
3. Cnidaria
4. Mollusca

Q.

Exclusively marine animals which are triploblastic, deuterostomes and exhibit radial symmetry in the adult stage and bilateral symmetry in the larval stages are placed under

1. Annelida

2. Arthropoda

3. Mollusca

4. Echinodermata

Q.

Exclusively marine animals which are triploblastic, deuterostomes and exhibit radial symmetry in the adult stage and bilateral symmetry in the larval stages are placed under

1. Annelida

2. Arthropoda

3. Mollusca

4. Echinodermata

Q. Which of the following is not an echinoderm?

1. Sea cucumber
2. Sea lemon
3. Sea lily
4. Sea biscuit

Q.

Which of the following is not true about Echinoderms?

1. Calcareous exoskeleton

2. Triploblastic

3. Radially symmetrical

4. Ventral mouth and dorsal anus

Q. Which one of the following groups of three animals each is correctly matched with their one characteristic morphological feature?
$\begin{array}{cc}\text{Animals}& \text{Morphological feature}\\ \text{A. Liver fluke, sea anemone,}& \text{Bilateral symmetry}\\ \text{sea cucumber}& \\ \text{B. Centipede, prawn, sea urchin}& \text{Jointed appendages}\\ \text{C. Scorpion, spider, cockroach}& \text{Ventral solid nerve cord}\\ \text{D. Cockroach, locust, Taenia}& \text{Metameric segmentation}\end{array}$

1. A
2. B
3. C
4. D

Q. Echinoderms are a phylum consisting of marine vertebrates.

1. True
2. False

Q.

Write the scientific names of :

Starfish

Q.

Pick the incorrect statement regarding echinoderms

1. Body has an endoskeleton made of calcareous spicules.

2. Adults show pentaradial symmetry while larvae show bilateral symmetry.

3. Water vascular system is well developed and aids in locomotion and feeding.

4. They exhibit organ level of organisation.

Q. Spiny bodied animals
(a) Are exclusively marine
(b) Have ventral anus
(c) Have radially symmetrical larva
(d) Lack excretory system
Which of the statements are correct?

1. All correct
2. a & b
3. a, c, d
4. only a

Q. Mouth in starfish is on the _________ surface and anus is on the _________ surface respectively.

1. aboral, oral
2. oral, ventral
3. aboral, dorsal
4. oral, aboral

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. Indirect development means

1. there is no larval stage during development
2. there is a larval stage during development
3. the embryo develops inside the body of the organism
4. the embryo develops in water

Q. The common name of Asterias

1. brittle star
2. starfish
3. basket star
4. sea lily