Q. No.Which of the following reptiles has a four chambered heart?
1.
Crocodile
2.
Wall lizard
3.
Turtle
4.
Tortoise
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In birds:
| a: | the characteristic feature is the presence of feathers. |
| b: | forelimbs are modified into wings. |
| c: | flight is present in all members. |
| d: | hind limbs do not have scales. |
| 1. | Only (a) and (d) are incorrect |
| 2. | Only (c) and (d) are correct |
| 3. | (a), (b) and (c) are correct |
| 4. | Only (a) and (b) are correct |
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Birds are not characterized by:
| 1. | a fully ossified endoskeleton |
| 2. | pneumatic long bones |
| 3. | absence of crop and gizzard in the digestive tract |
| 4. | a dry skin without glands except the oil gland |
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Consider the given two statements:
| I: | Birds have a four chambered heart and are warm blooded. |
| II: | Respiration in birds is by lungs that are connected to air sacs. |
| 1. | I is correct but II is incorrect |
| 2. | Both I and II are correct. |
| 3. | Both I and II are incorrect. |
| 4. | I is incorrect but II is correct. |
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| Biological name | Common name | |
| 1. | Aptenodytes | Penguin |
| 2. | Pavo | Peacock |
| 3. | Struthio | Pigeon |
| 4. | Psittacula | Parrot |
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| 1. a four chambered heart | 2. a single aortic arch |
| 3. homeothermy | 4. mammary glands |
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| 1. Ornithorhynchus | 2. Macropus |
| 3. Macaca | 4. Balaenoptera |
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| 1. | Flightless bird |
| 2. | Limbless amphibian |
| 3. | Viviparous mammal |
| 4. | Economically important insect |
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| I: | This is seen in sponges, cnidarians, ctenophores and larval echinoderms. |
| II: | This type of body symmetry is generally seen in animals which move actively in their environment. |
| 1. | Only I | 2. | Only II |
| 3. | Both I and II | 4. | Neither I nor II |
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| 1. | Body will be bilaterally symmetrical |
| 2. | Muscle will be well developed |
| 3. | A true coelom will be present |
| 4. | Both will have cells organized into tissues and heterotrophic nutrition |
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