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Q. No.The cloaca in a frog is a small, median chamber that is used to pass:
1.
only faecal matter to the exterior.
2.
only faecal matter and urine but not sperms to the exterior.
3.
faecal matter, urine and sperms to the exterior.
4.
faecal matter and sperms but not urine to the exterior.
Subtopic: Frogs: Anatomy (Excretory System) |
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Mesorchium in frogs:
| 1. | is a double fold of peritoneum that adheres testes to kidney. |
| 2. | is a double fold of peritoneum that adheres ovaries to kidney. |
| 3. | is the outer cortical part of testes. |
| 4. | is the outer cortical part of ovaries. |
Subtopic: Frogs: Anatomy (Male Reproductive System) |
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Consider the two statements:
| Statement I: | In male frogs, the testes are found adhered to the upper part of the kidneys and have a functional connection with the kidneys. |
| Statement II: | In female frogs, the ovaries are situated near the kidneys and there is no functional connection with the kidneys. |
| 1. | Statement I is correct, Statement II is correct |
| 2. | Statement I is incorrect, Statement II is correct |
| 3. | Statement I is correct, Statement II is incorrect |
| 4. | Statement I is incorrect, Statement II is incorrect |
Subtopic: Frogs: Anatomy (Male Reproductive System) |
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A pair of oviducts arising from the ovaries in female frogs:
| 1. | join to form a single median duct that opens into the cloaca. |
| 2. | opens into the cloaca separately. |
| 3. | opens separately to the exterior through the skin. |
| 4. | join to form a single median duct that opens into Bidder’s canal. |
Subtopic: Frogs: Anatomy (Female Reproductive System) |
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In frog:
| 1. | Fertilisation is external, takes place in water while development involves a larval stage called tadpole that undergoes metamorphosis to form the adult. |
| 2. | Fertilisation is internal, takes place inside the female body while development involves a larval stage called tadpole that undergoes metamorphosis to form the adult. |
| 3. | Fertilisation is external, takes place in water while development involves a larval stage called instar that undergoes paurometabolous metamorphosis to form the adult. |
| 4. | Fertilisation is internal, takes place inside the female body while development involves a larval stage called instar that moults 13 times to form the adult. |
Subtopic: Frogs: Anatomy (Female Reproductive System) |
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The number of ova that can be laid by a mature female frog at a time varies between:
| 1. | 100 to 200 | 2. | 750 to 1250 |
| 3. | 2500 to 3000 | 4. | 8000 to 10000 |
Subtopic: Frogs: Anatomy (Female Reproductive System) |
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Frogs are beneficial for mankind because:
| 1. | they are an important source of food all over the world. |
| 2. | toxins derived from them can cure many human ailments. |
| 3. | while burrowing, they loosen soil in arid environments making the soil highly fertile. |
| 4. | they eat insects and protect the crop. |
Subtopic: Frogs | How Frogs are Beneficial for Mankind? |
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In the given diagrammatic representation of internal organs of a frog showing the complete digestive system, identify I, II, III, IV:
| I | II | III | IV | |
| 1. | Oesophagus | Liver | Gall bladder | Fat bodies |
| 2. | Pharynx | Liver | Gall bladder | Uricose glands |
| 3. | Buccal cavity | Gall bladder | Liver | Antennal glands |
| 4. | Oesophagus | Gall bladder | Liver | Fat bodies |
Subtopic: Frogs: Anatomy (Digestive System) |
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In the given diagrammatic representation of internal organs of a frog showing complete digestive system, identify V, VI, VII, VIII:
| V | VI | VII | VIII | |
| 1. | Uterus | Urinary bladder | Rectum | Cloaca |
| 2. | Ureter | Urinary bladder | Rectum | Cloaca |
| 3. | Ureter | Urinary bladder | Cloaca | Rectum |
| 4. | Urethra | Urinary bladder | Cloaca | Rectum |
Subtopic: Frogs: Anatomy (Digestive System) |
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The figure shows the female reproductive system of a frog. Identify A, B, C and D:
| A | B | C | D | |
| 1. | Ova | Ovary | Ureter | Urinary bladder |
| 2. | Ovary | Oviduct | Ureter | Urinary bladder |
| 3. | Ova | Oviduct | Urethra | Urinary bladder |
| 4. | Ova | Oviduct | Ureter | Cloaca |
Subtopic: Frogs: Anatomy (Female Reproductive System) |
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