Read the following statements for frog:
(i) They possess both neural and endocrine system
(ii) They possess a central nervous system (Brain and spinal cord) and a peripheral nervous system (cranial and spinal nerves)
(iii) They lack an autonomic nervous system
(iv) They possess 10 pairs of cranial nerves arising from the brain
(v) Stomach contains oxyntic glands, gastric glands, hepatic caeca, calciferous glands as well as collaterial glands
How many of the above statements are correct?
1. Two
2. Three
3. Four
4. Five
Subtopic: Frogs: Anatomy (Nervous System) |
64%
From NCERT
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Match the columns:
1. A - (i), B - (iii), C - (ii)
2. A - (ii), B - (i), C - (iii)
3. A - (iii), B - (i), C - (ii)
4. A - (i), B - (ii), C - (iii)
| Column-I | Column-II | ||
| A. | Fore-brain | (i) | A pair of optic lobes |
| B. | Mid-brain | (ii) | Cerebellum and medulla oblongata |
| C. | Hind-brain | (iii) | Olfactory lobe, paired cerebral hemisphere, unpaired diencephalon |
2. A - (ii), B - (i), C - (iii)
3. A - (iii), B - (i), C - (ii)
4. A - (i), B - (ii), C - (iii)
Subtopic: Frogs: Anatomy (Nervous System) |
89%
From NCERT
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Select the correct statement for frogs:
1. Ear acts as organ for hearing but not balancing
2. External ear is absent and only tympanum can be seen externally
3. These possess compound eyes
4. All of the above
1. Ear acts as organ for hearing but not balancing
2. External ear is absent and only tympanum can be seen externally
3. These possess compound eyes
4. All of the above
Subtopic: Frogs: Anatomy (Nervous System) |
79%
From NCERT
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Testes in frogs:
1. Are attached to the lower part of kidney by mesorchium
2. Are compact mass of highly coiled seminiferous tubules
3. Both (1) and (2)
4. Are triangular shaped
1. Are attached to the lower part of kidney by mesorchium
2. Are compact mass of highly coiled seminiferous tubules
3. Both (1) and (2)
4. Are triangular shaped
Subtopic: Frogs: Anatomy (Excretory System) |
From NCERT
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Vasa efferentia in frogs:
1. Are 30-40 in number connecting tests to the kidneys
2. Run transversely through the mesorchium and opens into Bidder's canal
3. Do not connect to Bidder's canal
4. Has no role in sperm transport
1. Are 30-40 in number connecting tests to the kidneys
2. Run transversely through the mesorchium and opens into Bidder's canal
3. Do not connect to Bidder's canal
4. Has no role in sperm transport
Subtopic: Frogs: Anatomy (Female Reproductive System) |
83%
From NCERT
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Choose the correct statement for female reproductive system of frogs:
1. Ovaries have no functional or internal connections with the kidneys
2. Possess Bidder's canal
3. The posterior ends of oviduct are broad called ovisacs which open dorsally into cloaca
4. More than one option is correct
1. Ovaries have no functional or internal connections with the kidneys
2. Possess Bidder's canal
3. The posterior ends of oviduct are broad called ovisacs which open dorsally into cloaca
4. More than one option is correct
Subtopic: Frogs: Anatomy (Female Reproductive System) |
57%
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Read the following statements for frogs:
(i) A mature female can lay 2500 to 3000 ova at a time
(ii) Fertilization is external and occurs in water
(iii) Development is indirect
(iv) Tadpoles are herbivores
(v) Tadpoles possess external gills which later gets replaced by internal gills after metamorphosis
How many of the above statements are correct?
1. Two
2. Four
3. Three
4. Five
(i) A mature female can lay 2500 to 3000 ova at a time
(ii) Fertilization is external and occurs in water
(iii) Development is indirect
(iv) Tadpoles are herbivores
(v) Tadpoles possess external gills which later gets replaced by internal gills after metamorphosis
How many of the above statements are correct?
1. Two
2. Four
3. Three
4. Five
Subtopic: Frogs: Anatomy (Female Reproductive System) |
From NCERT
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Identify A, B, C and D for frogs:
| A | B | C | D | |
| 1. | Ovisac | Ovary | Cloaca | Ureter |
| 2. | Oviduct | Ovary | Urinogenital tract | Cloaca |
| 3. | Ovisac | Cloaca | Oviduct | Anus |
| 4. | Oviduct | Ovary | Ureter | Cloaca |
Subtopic: Frogs: Anatomy (Female Reproductive System) |
79%
From NCERT
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The terms for ‘summer sleep’ and ‘winter sleep’ seen in frogs respectively are:
1. Aestivation and Hibernation
2. Hibernation and Aestivation
3. Diapause and Cryptobiosis
4. Cryptobiosis and Diapause
1. Aestivation and Hibernation
2. Hibernation and Aestivation
3. Diapause and Cryptobiosis
4. Cryptobiosis and Diapause
Subtopic: Frogs |
93%
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Frog, when on land, uses which of the following as its respiratory organs?
| I: The buccal cavity | II: Skin | III: Lungs |
| 1. | Only I and II | 2. | Only I and III |
| 3. | Only II and III | 4. | I, II and III |
Subtopic: Frogs |
71%
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