Identify the incorrect match from those given below

(1)

Jelly fish

Aurelia

Scyphozoa

(2)

Paddle worm

Chaetopterus

Polychaeta

(3)

Cray fish

Oniscus

Crustacea

(4)

Acorn worm

Balanoglossus

Enteropneusta

 

Subtopic:  Phylum Arthropoda |
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Which of the following is common among mammals?

(1) They do not moult

(2) They have seven cervical vertebrae

(3) They are carnivores

(4) They have ventral nerve cord

Subtopic:  Study of Aves & Mammals |
 58%
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Water transport system or canal system is a characteristic feature of which animal?

1. Spongilla

2. Hydra

3. Asterias

4. Echinus

Subtopic:  Phylum Porifera |
 91%
From NCERT
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Fresh water sponge is the common name of

(1) Hydra

(2) Sycon

(3) Spongilla

(4) Euspongia

Subtopic:  Phylum Porifera |
 83%
From NCERT
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Collar cells are present in the members of which phyla

1. Echinodermata

2. Coelenterata

3. Ctenophora

4. Porifera

Subtopic:  Phylum Porifera |
 86%
From NCERT
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Fragmentation is a method of asexual repoduction in

(1) Annelida

(2) Platyhelminthes

(3) Aschelminthes

(4) Porifera

Subtopic:  Phylum Porifera |
 83%
From NCERT
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Eggs and Sperm are produced by the same individual in case of

(1) Leech

(2) Sponges

(3) Pleurobrachia

(4) All of the above

Subtopic:  Phylum Porifera | Phylum Ctenophora & Platyhelminthes | Phylum Annelida |
 63%
From NCERT
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The digestive system in Meandrina is

(1) Digestion is extracellular only

(2) Digestion is intracellular only

(3) Digestion is both extracellular and intracellular

(4) Digestion absent as it is a parasite

Subtopic:  Phylum Coelenterata |
 86%
From NCERT
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Both polyp and medusa life forms are present in the life cycle of

(1) Obelia

(2) Physalia

(3) Aurelia

(4) Adamsia

Subtopic:  Phylum Coelenterata |
 86%
From NCERT
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The skeleton of corals is made up of

(1) Calcium silicate

(2) Calcium phosphate

(3) Hydroxyapatite

(4) Calcium carbonate

Subtopic:  Phylum Coelenterata |
 88%
From NCERT
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