Body having meshwork of cells, internal cavities lined with food filtering flagellated cells

and indirect development are the characteristics of phylum

1. Coelenterata

2. Porifera

3. Mollusca

4. Protozoa

Subtopic:  Phylum Porifera |
 82%
NEET - 2015
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Which of the following represent the correct combination without any exception?

Characteristic

Class

(1) Mammary gland; hair on body; pinnae; two pairs of limbs

Mammalia

(2) Mouth ventral; gills without operculum; skin with placoid scales; persistent notochord

Chondrichthyes

(3) Sucking and circular mouth; jaws absent; integument without scales; paired appendages

Cyclostomata

(4) Body coverd with feathers; skin moist and glandular; lungs with air sacs; fore limbs form wings

Aves

Subtopic:  Comparative study of Cartilagenous & Bony Fishes |
From NCERT
NEET - 2015
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Which of the following animals is not viviparous?

1. Flying fox (bat)               

2. Elephant

3. Platypus

4. Whale

Subtopic:  Study of Aves & Mammals |
 82%
From NCERT
NEET - 2015
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Pick the odd pair out.

(1) Porifera : choanoflagellates

(2) Cnidaria : nematocysts

(3) Nematoda : pseudocoelom

(4) Mollusca : torsion

Subtopic:  Phylum Porifera |
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Chitin is a polysaccharide found in the exoskeleton of

(1) prawn

(2) insects

(3) crabs

(4) all of these

Subtopic:  Phylum Arthropoda |
 89%
From NCERT
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Which of these is not a coelenterate?

(1) Sea pen

(2) Sea fur

(3) Sea anemone

(4) Sea lily

Subtopic:  Phylum Echinodermata |
 72%
From NCERT
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Protonephridia are the excretory structures present in

(1) Planaria

(2) roundworm

(3) tapeworm

(4) Both 1 and 3

Subtopic:  Phylum Ctenophora & Platyhelminthes |
 75%
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Carapace is present can be observed in

(1) Hemidactylus

(2) Testudo

(3) Naja

(4) Bufo

Subtopic:  Study of Reptilia |
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Closed circulatory system is not found in

(1) octopus

(2) tunicates

(3) echinoderms

(4) squids

Subtopic:  Phylum Echinodermata |
 55%
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Polyp phase is absent in the life cycle of:

(1) Hydra

(2) Hormiphora

(3) Pennatula

(4) Physalia

Subtopic:  Phylum Coelenterata |
 50%
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