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Q. No.Subtopic: Frogs: Anatomy (Excretory System) |
81%
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The excretory system of a frog consists of all of the following, except:
| 1. | a pair of kidneys | 2. | a pair of urethra |
| 3. | a single median cloaca | 4. | urinary bladder |
Subtopic: Frogs: Anatomy (Excretory System) |
78%
From NCERT
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How many of the given statements regarding the anatomy of frogs are correct?
| A: | Kidneys are situated a little posteriorly in the body cavity on both sides of the vertebral column. |
| B: | Each kidney is composed of several structural and functional units called uriniferous tubules or nephrons. |
| C: | Two ureters emerge from the kidneys in male frogs, where the ureters act as urinogenital ducts that open into the cloaca. |
| D: | In females, the ureters and oviduct open separately in the cloaca. |
| 1. | 1 | 2. | 2 |
| 3. | 3 | 4. | 4 |
Subtopic: Frogs: Anatomy (Excretory System) |
80%
From NCERT
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The thin-walled urinary bladder in frog is present:
| 1. | ventral to the rectum which does not open in the cloaca. |
| 2. | ventral to the rectum which also opens in the cloaca. |
| 3. | dorsal to the rectum which does not open in the cloaca. |
| 4. | dorsal to the rectum which also opens in the cloaca. |
Subtopic: Frogs: Anatomy (Excretory System) |
85%
From NCERT
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Subtopic: Frogs: Anatomy (Nervous System) |
88%
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The mid brain of frog is characterised by:
| 1. | a pair of olfactory lobes |
| 2. | paired cerebral hemispheres |
| 3. | unpaired diencephalon |
| 4. | a pair of optic lobes |
Subtopic: Frogs: Anatomy (Nervous System) |
84%
From NCERT
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Unlike human brain, which of the following structure is not a feature of a frog’s brain?
| 1. | Cerebellum | 2. | Pons varolii |
| 3. | Medulla oblongata | 4. | Olfactory lobes |
Subtopic: Frogs: Anatomy (Nervous System) |
83%
From NCERT
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The nervous system of a frog is organised into:
| I: | central nervous system | brain and spinal cord |
| II: | peripheral nervous system | cranial and spinal nerves |
| III: | autonomic nervous system | sympathetic and parasympathetic |
| 1. | Only I and II | 2. | Only I and III |
| 3. | Only II and III | 4. | I, II and III |
Subtopic: Frogs: Anatomy (Nervous System) |
90%
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The forebrain of frog does not include:
| 1. | olfactory lobes | 2. | cerebral hemispheres |
| 3. | diencephalon | 4. | cerebellum |
Subtopic: Frogs: Anatomy (Nervous System) |
81%
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The opening in the skull of the frog through which the medulla oblongata passes out and continues into the spinal cord is called as:
| 1. | Foramen ovale | 2. | Foramen spinosum |
| 3. | Foramen magnum | 4. | Obturator foramen |
Subtopic: Frogs: Anatomy (Nervous System) |
94%
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