Phylum Echinodermata

Q.

What type of symmetry is present in Echinodermata at larval stage?

1. Radial

2. Biradial

3. Bilateral

4. None of the above

Q.

Where is stomochord present in hemichordata?

Q.

Which of the following systems are found in echinoderms?

1. Nervous system

2. Vascular system

3. Excretory system

4. System of an internal skeleton

Q.

Animals that spends their lives fixed to a substratum

Q. Phylum X has a rough and spiny body. It has neither head nor tail. Their body is usually star or ball shaped. Where is X commonly found?

1. Marine body
2. Fresh water
3. Lakes
4. Glaciers

Q.

Fresh water Echinodermata is:

1. star fish

2. sea urchin

3. feather star

4. none

Q.

Comb jellies belong to ________?

Q.

Which of the following is an organ for locomotion found in the phylum echinodermata?

1. Tube-feet

2. Seatae

3. Pseudopodia

4. Cilia

Q.

Which phylum do starfish and sea urchin belong to?

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

Q.

Name some members belonging to the phylum Echinodermata.

Q.

Echinoderms have a bilaterally symmetrical body.

1. True

2. False

Q. Match the phyla with their characteristic feature-

$\begin{array}{cc}\text{Column I}& \text{Column II}\\ \text{1.Arthropoda}& \text{a) Spiny skinned}\\ \text{2.Echinodermata}& \text{b) Muscular foot}\\ \text{3.Mollusca}& \text{c) Jointed appendages}\end{array}$

1. 1-b, 2-c, 3-a
2. 1-a, 2-c, 3-b
3. 1-c, 2-b, 3-a
4. 1-c, 2-a, 3-b

Q. Match the following organisms with the phylum they belong to.

1. Jelly fish
2. Ascaris
3. Nereis
4. Scorpion

Q.

Which of the following is NOT true for echinoderms

1. Exclusively marine

2. Pseudocoelomate

3. Water vascular system

4. No excretory organ

Q. Myriapoda includes

1. Diplopods only
2. Locusts
3. Both diplopods and chilopods
4. Chilopods only

Q. Identify the incorrect statements.
(i) Members of gastropoda exhibit torsion.
(ii) Aristotle's lantern is present in heart urchins.
(iii) Anthozoans are polypoid forms.
(iv) Diplopoda includes centipedes.

1. ii, iii
2. ii iv
3. i, ii.
4. iii, iv

Q. Tube -within -tube body plan is shown by

1. Annelida
2. Flatworms
3. Coelenterates
4. Sponges