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Q. No.Subtopic: Frogs: Anatomy (Nervous System) |
91%
Level 1: 80%+
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How many pairs of cranial nerves arise from the brain in frogs?
1. Five
2. Seven
3. Ten
4. Twelve
1. Five
2. Seven
3. Ten
4. Twelve
Subtopic: Frogs: Anatomy (Nervous System) |
90%
Level 1: 80%+
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The part of frogs brain which is continuous with the spinal cord is
| 1. | Cerebellum |
| 2. | Medulla oblongata |
| 3. | Mid-brain |
| 4. | Diencephalon |
Subtopic: Frogs: Anatomy (Nervous System) |
84%
Level 1: 80%+
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Subtopic: Frogs: Anatomy (Nervous System) |
96%
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Regarding the structure and organization of the frog's brain, consider the following statements:
Which of the statements given above are correct?
| I: | The brain is enclosed in a bony structure called the brain box or cranium. |
| II: | The brain is divided into fore-brain, mid-brain, and hind-brain. |
| III: | The fore-brain includes the olfactory lobes, paired cerebral hemispheres, and unpaired diencephalon. |
| IV: | The hind-brain is characterized by the presence of optic lobes. |
Which of the statements given above are correct?
| 1. | I and III only |
| 2. | II and IV only |
| 3. | I, II, and III only |
| 4. | I, II, and IV only |
Subtopic: Frogs: Anatomy (Nervous System) |
85%
Level 1: 80%+
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In frog, all are cellular aggregations around nerve endings except-
| 1. | Sensory papillae | 2. | Taste buds |
| 3. | Nasal epithelium | 4. | Eyes and internal ear |
Subtopic: Frogs: Anatomy (Nervous System) |
82%
Level 1: 80%+
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Consider the given two statements regarding frog:
| Statement I: | The nervous system is organised into a central nervous system (brain and spinal cord), a peripheral nervous system (cranial and spinal nerves) and an autonomic nervous system (sympathetic and parasympathetic) and there are ten pairs of cranial nerves arising from the brain. |
| Statement II: | The brain is divided into fore-brain, mid-brain and hind-brain where the forebrain includes olfactory lobes, paired cerebral hemispheres and unpaired diencephalon, the midbrain is characterised by a pair of optic lobes and the hind-brain consists of cerebellum and medulla oblongata. |
| 1. | Statement I is correct; Statement II is correct |
| 2. | Statement I is correct; Statement II is incorrect |
| 3. | Statement I is incorrect; Statement II is correct |
| 4. | Statement I is incorrect; Statement II is incorrect |
Subtopic: Frogs: Anatomy (Nervous System) |
86%
Level 1: 80%+
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Which of the following is incorrect about sensory organs in frog?
| 1. | Frogs possess a pair of tympanic membranes for hearing. |
| 2. | While in water, the eyes are protected by a nictitating membrane. |
| 3. | Olfactory receptors [for smell] are located in the nasal epithelium. |
| 4. | The taste buds are absent in frog’s buccal cavity. |
Subtopic: Frogs: Anatomy (Nervous System) |
80%
Level 1: 80%+
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Subtopic: Frogs: Anatomy (Nervous System) |
82%
Level 1: 80%+
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Frog has sense organs like sensory papillae (for touch), taste buds, nasal epithelium (smell), eyes, tympanum with internal ear (for hearing) out of these, which of the following is well-organised structure?
| 1. | Eyes and internal ears |
| 2. | Eyes and sensory papillae |
| 3. | Internal ears and taste buds |
| 4. | Taste buds and sensory papillae |
Subtopic: Frogs: Anatomy (Nervous System) |
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Level 1: 80%+
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