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Q. No.The following substances are the excretory products in animals. Choose the least toxic form among them.
1. Urea
2. Uric acid
3. Ammonia
4. Carbon dioxide
Subtopic: Â Nitrogenous Excretory Products |
 87%
From NCERT
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Different types of excretory structures and animals are given below. Match them appropriately and mark the correct answer from among those given below
| Excretory Structure/Organ | Animals | ||
| A. | Protonephridia | 1. | Prawn |
| B. | Nephridia | 2. | Cockroach |
| C. | Malpighain tubules | 3. | Earthworm |
| D. | Green gland or antennal gland | 4. | Flatworms |
Codes
| A | B | C | D | |
| 1. | 4 | 3 | 2 | 1 |
| 2. | 2 | 3 | 1 | 2 |
| 3. | 4 | 3 | 1 | 2 |
| 4. | 2 | 3 | 2 | 4 |
Subtopic: Â Nitrogenous Excretory Products |
 93%
From NCERT
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Which one of the following statements is incorrect?
| 1. | Birds and land snails are uricotelic animals |
| 2. | Mammals and frogs are ureotelic animals |
| 3. | Aquatic amphibians and aquatic insects are ammonotelic animals |
| 4. | Birds and reptiles are ureotelic |
Subtopic: Â Nitrogenous Excretory Products |
 88%
From NCERT
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Which of the following pairs is wrong?
1. Uricotelic ......... Birds
2. Ureotelic ......... Insects
3. Ammonotelic ......... Tadpole
4. Ureotelic .......... Elephant
Subtopic: Â Nitrogenous Excretory Products |
 83%
From NCERT
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