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Which of the following is not a characteristic of phylum echinodermata ?

A. They have a water vascular system.

B. They have an internal skeleton.

C. They are protostomes.

D. They have bilateral symmetry at larval stage.

Correct Answer :

C. They are protostomes.


Species of the phylum echinodermata are deuterostomes.

Related Questions

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Which of the following group of animals belongs to the same phylum?

A. Earthworm, pinworm, tapeworm

B. Prawn, scorpion, Locusta

C. Sponge, Sea anemone, starfish

D. Malarial parasite, Amoeba, mosquito

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Few cnidarians like corals have a skeleton composed of

A. calcium hydroxide

B. calcium sulphate

C. calcium carbonate

D. sodium bicarbonate

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Which of the following is an incorrect statement regarding flatworms ?

A. They are acoelomates.

B. They are bilaterally symmetrical.

C. They lack a digestive system.

D. They have a circulatory system.

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4

Match the organisms given in column-I with their common name given in column-II and choose the correct option.
Column -IColumn -II
(Organisms)(Comman name)
A. PennatulaI. Sea-lily
B. AntedonII. Sea- pen
C. EchinusIII. Sea-urchin
D. CucumariaIV. Sea - cucumber

A. A II; C III; D I; E IV

B. A II; C IV; D I; E III

C. A II; C I; D III; E IV

D. A II; C I; D III; E IV

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4

Match the features given in column I with their examples given in column II and choose the correct match from the option given below.
Column-IColumn-II
(Features)(Examples)
A. Pseudocoelomatesa. Hydra, Adamsia
B. Diploblasticb. Ctenoplana, Aurelia
C. Cellular level ofc. Ascaris, Wuchereria organization
D. Radial symmetryd. Sycon, Spongilla
E. Metamerisme. Pheretima, Neries

A. A - e, B - b, C - d, D - c, E - a

B. A - c, B - a, C - d, D - b, E - e

C. A - b, B - a, C - c, D - e, E - d

D. A - c, B - b, C - d, D - a, E - e

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4

Which of the following phylum is being described by the given statements?
(i) These are primitive multicellular animals and have cellular level of organization.
(ii) Digestion is intracellular.
(iii) They have a water transport or canal system.
(iv) They reproduce asexually by fragmentation and sexually by formation of gametes.

A. Porifera

B. Ctenophora

C. Coelenterata

D. Platyhelminthes

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4

The given figure shows some characteristic features marked as chordates. Identify the correct labelling A,B,C and D. 
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A. A-Notochord; B-Post-anal part; C-Gill slits; D-Nerve cord

B. A-Nerve cord; B-Notochord; C-Post-anal part; D-Gill slits

C. A-Notochord; B-Nerve cord; C-Gill slits; D-Post-anal part

D. A-Gill slits; B-Post-anal part; C-Nerve cord; D-Notochord

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Which of the following belong to phylum arthropoda?

A. Bombyx and Apis

B. Laccifer and Anopheles

C. Locusta and Limulus

D. All of the above

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In phylum arthropoda, excretion takes place through

A. nephridia

B. flame cells

C. malphigian tubules

D. gills

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4

A student was given a specimen to identify on the basis of the characteristics given below.
(i) They are metamerically segmented.
(ii) Presence of closed circulatory system.
(iii) They have circular and longitudinal muscles for locomotion. Identify the specimen.

A. Prawn

B. Pheretima

C. Wuchereria

D. Ctenoplana

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4

Refer the types of cells present in some animals. Each cell is specialized to perform a single specific function except

A. Cnidocytes

B. Choanocytes

C. Interstitial cells

D. Gastrodermal cells

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4

The transition from aquatic to terrestrial lifestyles required many adaptations in the vertebrate lineage. Which of the following is not one of those adaptations ?

A. Switch from gill respiration to air-breathing lungs.

B. Improvements in water resistance of skin.

C. Alteration in mode of locomotion.

D. Development of feathers for insulation.

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4

Which of the following is a living fossil?

A. Balanoglossus

B. Echinus

C. Ancylostoma

D. Limulus

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4

In amphibians, respiration occurs through

A. gills

B. lungs

C. skin

D. all of these

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Which of the following features distinguish mammals from other vertebrates ?

A. Hairy skin and oviparity

B. Hairy skin and mammary glands

C. Mammary glands and teeth

D. Pinna and teeth

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4

Which of the following is not a characteristic feature of kingdom animalia ?

A. Storage of carbohydrates as starch.

B. Multicellularity.

C. Obtaining nutrients by ingestion.

D. Having eukaryotic cells without walls.

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4

Which of the following characteristic is probably most responsible for the great diversification of insects on land ?

A. Segmentation

B. Antennae

C. Bilateral symmetry

D. Exoskeleton

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4

Which of the following class is being correctly described by given statements (i - iv)?
(i) All living members of this class are ectoparasites on some fishes.
(ii) They have a sucking and circular mouth without jaws.
(iii) Circulation is of closed type.
(iv) They are marine but migrate for spawning to fresh water. After spawing, within a few days they die.

A. Cyclostomata

B. Chondrichthyes

C. Osteichthyes

D. Amphibia

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4

The combination of a true coelom and repeating body segmentation allows the annelids (unlike the anatomically simpler worms) to do which of the following?

A. Attain complex body shapes and thus locomote more precisely.

B. Move through loose marine sediments.

C. Be hermaphroditic.

D. Inject paralytic poisons into their prey.

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4

Which of the following statements is without exception in sponges ?

A. They all have calcareous spicules.

B. They have high regenerative power.

C. They are found only in marine water.

D. They are all radially symmetrical.

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4

Meandrina (brain coral) belongs to phylum

A. porifera

B. coelenterata

C. ctenophora

D. platyhelminthes

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4

Heart is three - chambered in reptiles, except

A. turtle

B. Chameleon

C. Naja (Cobra)

D. crocodile

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Select the incorrect feature of mollusca from the given statements.

  1. Terrestrial or aquatic animals having cellular system level of organization.

  2. Radial symmetrical and acoelomate animals and possesses two germinal layers.

  3. A file like rasping organ called radula is present.

  4. Usually dioecious and viviparous animals.

  5. Examples include Pila, Octopus, and Dentalium.

A. (i) and (ii) only

B. (ii) and (iv) only

C. (i), (ii) and (iv) only

D. All the five statements.

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4

Refer the following statement and answer the question. 'Name of X is derived from stinging capsules. It exhibits metagenesis containing two body forms in which sessile and cylindrical form is called Y and umbrella shaped and free swimming is called Z. Identify X, Y, and Z.

A. X - Coelenterate, Y - Polyp, Z - Medusa

B. X - Cnidarian, Y - Medusa, Z - Polyp

C. X - Ctenophora, Y - Radula, Z - Hypostome

D. X - Porifera, Y - Osculum, Z - Radula

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4

Which of the following traits is not shared by both sea anemones and jellyfish ?

A. A medusa as the dominant stage in the life cycle.

B. Possession of a gastro vascular cavity.

C. Sexual reproduction.

D. Nematocysts present on the tentacles.

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Which of the follwoing statement(s) is/are correct?
(i) Organ systems in different group of animals show various patterns of complexities.
(ii) The digestive system in platyhelminthes has only a single opening to the outside of the body that serve as both mouth and anus, and is hence called complete.
(iii) In open type of circulatory system, the blood is pumped out of the heart and the cells and tissues are directly bathed in it.
(iv) In closed type, the blood is circulated through a series of vessels of varying diameters (arteries, veins and capillaries).

A. Only (i)

B. Both (ii) and (iii)

C. (i), (iii) and (iv)

D. All of these

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A file like rasping organ for feeding, called radula, present in the phylum __________.

A. arthropoda

B. mollusca

C. echinodermata

D. chordata

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Which of the following is a connecting link between invertebrates and non-invertebrates?

A. Sphenodon

B. Balanoglossus

C. Tadpole larva

D. Crocodile

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Match the characteristic feature/terms given in column I with the phylum to which they belongs given in column II and choose the correct option.
Column-IColumn-II
(Characteristic feature/term)(Phylum)
A. ChoanocytesI. Platyhelminthes
B. CnidoblastsII. Ctenophora
C. Flame cellsIII. Porifera
D. NephridiaIV. Coelenterata
E. Comb platesV. Annelida

A. A II; B I; C IV; D V; E III

B. A II; B IV; C I; D V; E III

C. A V; B I; C III; D II; E IV

D. A III; B IV; C I; D V; E II

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Which of the following pairs of animals comprises jawless fishes?

A. Mackerals and rohu

B. Lampreys and hag fishes

C. Guppies and hag fishes

D. Lampreys and eels