I: | sound producing vocal sacs which are absent in female frogs. |
II: | a copulatory pad on the first digit of the hind limbs which is absent 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. |
1. | 100 to 200 | 2. | 750 to 1250 |
3. | 2500 to 3000 | 4. | 8000 to 10000 |
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 |