Dry, cornified skin along with epidermal scales or scutes is found in

(1) Tortoise

(2) Hyla

(3) Bufo

(4) All of the above

Subtopic:  Study of Reptilia |
 62%
From NCERT
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The common name of Calotes versicolor is

1. Garden lizard

2. Tree lizard

3. Wall lizard

4. Monitor lizard

Subtopic:  Study of Reptilia |
 76%
From NCERT
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Assertion   :       Starfish moves through crawling.

Reason      :       Starfish utilise a flow of water over the surface, for movement.

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
Subtopic:  Phylum Echinodermata |
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Assertion   :       Claspers of cartilage fishes are analogous to penis of human male.

Reason      :       Both act as copulatory organs and transfer the sperms into female.

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
Subtopic:  Comparative study of Cartilagenous & Bony Fishes |
 78%
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Identify the incorrectly matched class of vertebrates with the features given :

1. Fishes - Jaws and paired appendages (except Agnathans); Single loop circulation; Gills

2. Amphibians - Legs ( except in Caecilian); three chambered heart; no pulmonary veins

3. Reptiles - Amniotic egg; dry skin, thoracic breathing

4. Birds - Feathers; flight skeleton; endothermy

Subtopic:  Study of Amphibians |
 62%
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In which of these examples are the members exclusively chondrichthyes

(1) Scoliodon, Pristis, Labeo, Betta

(2) Scoliodon, Pristis, Betta, Trygon

(3) Scoliodon, Trygon, Pristis, Carcharodon

(4) Scoliodon, labeo, Carcharodon, Pristis

Subtopic:  Comparative study of Cartilagenous & Bony Fishes |
 86%
From NCERT
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Which of the following animal has a bony endoskeleton?

(1) Exocoetus

(2) Clarias

(3) Pristis

(4) both (1) and (2)

Subtopic:  Comparative study of Cartilagenous & Bony Fishes |
 86%
From NCERT
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Which of the following statement/s about chondrichthyes are incorrect?

1) Notochord is persistent throughout life

2) Endoskeleton is made up of bones

3) Operculum present

4) Skin is covered by placoid scales

(1) All of the above

(2) None of the above

(3) 1 and 4 are incorrect

(4) 2 and 3 are incorrect

Subtopic:  Comparative study of Cartilagenous & Bony Fishes |
 76%
From NCERT
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Limbs are present in

(1) Osteichthyes

(2) Chondrichthyes

(3) Reptiles

(4) urochordates

Subtopic:  Study of Reptilia |
 86%
From NCERT
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A high regeneration capacity is present in

(1) Planaria

(2) Ancylostoma

(3) Sepia

(4) Sea cucumber

Subtopic:  Phylum Ctenophora & Platyhelminthes |
 96%
From NCERT
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