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Q. No.In the given diagram of the heart of frog identify X :
1.
Conus arteriosus
2.
Left atrium
3.
Sinus venosus
4.
Left ventricle
Subtopic: Frogs: Anatomy (Circulatory System) |
Level 3: 35%-60%
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In frog:
| 1. | Haemoglobin is present in red blood corpuscles which are biconvex and nucleated. |
| 2. | Haemoglobin is present in red blood corpuscles which are biconcave and nucleated. |
| 3. | Haemoglobin is present in red blood corpuscles which are biconvex and enucleated. |
| 4. | Haemoglobin is present in red blood corpuscles which are biconcave and enucleated. |
Subtopic: Frogs: Anatomy (Circulatory System) |
Level 3: 35%-60%
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Male and female frogs are distinguishable externally only during breeding season when:
| 1. | the female develops nuptial pad in the thumb |
| 2. | the male develops nuptial pad in the thumb |
| 3. | the male develops nuptial pad in the thumb and the female develops a nuptial pad on other digits |
| 4. | the male develops large nuptial pad in the thumb while the female develops small nuptial pad in the thumb |
Subtopic: Frogs: Anatomy (Male Reproductive System) |
82%
Level 1: 80%+
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Regarding skin of the frog, incorrect statement is:
| 1. | It is made of the epidermis and the dermis |
| 2. | Mucous glands are present in the dermis and open at the surface |
| 3. | It is soft, moist and slimy |
| 4. | It is covered by scales |
Subtopic: Frogs: Morphology |
78%
Level 2: 60%+
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In frogs:
| 1. | The dentition is homodont and the upper jaw is toothless. |
| 2. | The dentition is heterodont and the upper jaw is toothless. |
| 3. | The dentition is homodont and the lower jaw is toothless. |
| 4. | The dentition is heterodont and the lower jaw is toothless. |
Subtopic: Frogs: Anatomy (Digestive System) |
Level 3: 35%-60%
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During aestivation and hibernation, frog respires by:
| 1. | Lungs | 2. | Skin |
| 3. | Buccal mucosa | 4. | All of these |
Subtopic: Frogs: Anatomy (Respiratory System) |
83%
Level 1: 80%+
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Subtopic: Frogs: Anatomy (Nervous System) |
87%
Level 1: 80%+
Hints
Consider the following parts of the brain of frog:
| I. | Olfactory lobes |
| II. | Optic lobes |
| III. | Cerebral hemispheres |
| IV. | Diencephalon |
Forebrain includes:
| 1. | I, II, III, IV | 2. | I, II, III |
| 3. | I, III, IV | 4. | II, III, IV |
Subtopic: Frogs: Anatomy (Nervous System) |
71%
Level 2: 60%+
Hints
The hind brain of frog consists of:
| 1. | Pons and Medulla |
| 2. | Cerebellum and Pons |
| 3. | Hypothalamus and Thalamus |
| 4. | Cerebellum and Medulla |
Subtopic: Frogs: Anatomy (Nervous System) |
76%
Level 2: 60%+
Hints
Subtopic: Frogs |
60%
Level 2: 60%+
Hints
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