Identify the group where all given animals are warm blooded [homoiothermous]:
1. Aptenodytes, Struthio, Pteropus, Macaca
2. Neophron, Columba, Crocodilus, Testudo
3. Balaeonoptera, Equus, Psittacula, Salamandra 
4. Corvus, Marcopus, Naja, Hyla
Subtopic:  Study of Aves & Mammals |
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Level 1: 80%+
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Match Column-I with Column-II:
Column-I
(Respiratory organ)
Column-II
(Class)
A. Gills  1. Aves
B. Lungs 2. Pisces
C. Air sacs 3. Reptilia
D. Moist skin 4. Amphibia
1. A-2, B-3, C-1, D-4
2. A-1, B-2, C-3, D-4
3. A-2, B-3, C-4, D-1
4. A-4, B-3, C-2, D-1
Subtopic:  Study of Amphibians | Study of Reptilia | Study of Aves & Mammals |
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Level 1: 80%+
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Endoskeleton is fully ossified (bony) and the long bones are hollow with air cavities (pneumatic) in:
1. Birds
2. Amphibians
3. Reptiles
4. Mammals
Subtopic:  Study of Aves & Mammals |
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Level 1: 80%+
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Select the incorrect option with respect to birds.
 
1. Characteristic feature is presence of feathers
2. Forelimbs are modified into wings
3. Skin is dry without glands in all birds
4. They are oviparous and development is direct
Subtopic:  Study of Aves & Mammals |
 81%
Level 1: 80%+
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Animals having a built in thermostat to maintain constant body temperature are known as
1. biothermic               
2. poikilothermic
3. oligo thermic             
4. homeothermic

Subtopic:  Study of Aves & Mammals |
 82%
Level 1: 80%+
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Consider the given two statements:
Statement I: Birds have a fully ossified bony endoskeleton with hollow bones that contain air cavities.
Statement II: Birds possess a three-chambered heart that facilitates efficient circulation.
 
1. Both Statement I and Statement II are correct.
2. Both Statement I and Statement II are incorrect.
3. Statement I is correct but Statement II is incorrect.
4. Statement I is incorrect but Statement II is correct.
Subtopic:  Study of Aves & Mammals |
 79%
Level 2: 60%+
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Which of the following is a characteristic feature of birds?
 
1. They have a four-chambered heart
2. They are ectothermic
3. They exhibit external fertilization
4. They possess mammary glands
Subtopic:  Study of Aves & Mammals |
 82%
Level 1: 80%+
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Fully ossified endoskeleton with hollow long bones, digestive tract with additional chambers and ability to maintain constant body temperature will be found in

1. Pterophyllum

2. Psittacula

3. Pteropus

4. Testudo

Subtopic:  Study of Aves & Mammals |
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Which of the following animals possess non-elastic lungs with air sacs connected to them?
1. Reptiles
2. Birds
3. Amphibians
4. Mammals
Subtopic:  Study of Aves & Mammals |
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In which of the following animals, the digestive tract has additional chambers like crop and gizzard?
1. Pavo, Psittacula, Corvus 
2. Corvus, Columba, Chameleon
3. Bufo, Balaenoptera, Bangarus
4. Catla, Columba, Crocodilus 
Subtopic:  Study of Aves & Mammals |
 85%
Level 1: 80%+
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