| Statement I: | The vascular system of frog is well-developed and closed type. |
| Statement II: | Frogs do not have a lymphatic system. |
| 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 |
Heart of a frog:
| I: | has three chambers |
| II: | is a muscular pump |
| III: | is covered by pericardium |
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
| I: | are nucleated |
| II: | contain haemoglobin |
The excretory product eliminated by a frog is:
| 1. | Ammonia | 2. | Urea |
| 3. | Uric acid | 4. | Creatine |
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 |
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 |
| 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. |
| 1. | 8 pairs | 2. | 10 pairs |
| 3. | 11 pairs | 4. | 12 pairs |
| 1. | a pair of olfactory lobes |
| 2. | paired cerebral hemispheres |
| 3. | unpaired diencephalon |
| 4. | a pair of optic lobes |
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 |