Reptiles were very successful on land while amphibians were not. What evolutionary development was primarily responsible for the success of reptiles on land?
1. Scales over skin
2. Thoracic breathing
3. Amniotic egg
4. Strong Jaws
Which of the following pairs are correctly matched?
Animals |
Morphological features |
||
A. |
Crocodile |
– |
4-chambered heart |
B. |
Sea urchin |
– |
Parapodia |
C. |
Obelia |
– |
Metagenesis |
D. |
Lemur |
– |
Thecodont |
(1) A, C and D
(2) B, C and D
(3) Only A and D
(4) Only A and B
Carapace is present can be observed in
(1) Hemidactylus
(2) Testudo
(3) Naja
(4) Bufo
A lizard-like member of reptilia is sitting on a tree with its tail coiled around a twig. This animal could be
(1) Hemidactylus showing sexual dimorphism
(2) Varanus showing mimicry
(3) garden lizard (Calotes) showing camouflage
(4) Chamaeleon showing protective colouration
Limbs are present in
(1) Osteichthyes
(2) Chondrichthyes
(3) Reptiles
(4) urochordates
Dry, cornified skin along with epidermal scales or scutes is found in
(1) Tortoise
(2) Hyla
(3) Bufo
(4) All of the above
The common name of Calotes versicolor is
1. Garden lizard
2. Tree lizard
3. Wall lizard
4. Monitor lizard
The scientific name of gharial is:
1. Naja bungarus
2. Gaviais gangeticus
3. Hemidactylus flavivridis
4. None of the above
What is the number of animals, amongst the animals given in the box, that have both a four chambered heart and endothermy?
Crocodilus, Aptendoytes, Canis, Calotes, Struthio, Delphinus, Testudo, Icthyophis
1. | 3 | 2. | 4 |
3. | 5 | 4. | 6 |