Q. No.The total number of plant and animal species described so far is slightly more than 1.5 million. This is reported by
1. IUCN- 2004
2. IUN-2006
3. IUCN-2006
4. IUN-2004
For many taxonomic groups, species inventories are more complete in
1. Temperate countries
2. Tropical countries
3. Grasslands
4. Both (2) and (3)
According to extreme estimates, which say that there is 20 to 50 million global species diversity is based on
1. Species richness of insects
2. Species richness of Arthropods
3. Species evenness of insects
4. Species evenness of Arthropods
Which of the following has maximum global biodiversity?
1. Angiosperms
2. Algae
3. Lichens
4. Mosses
Given below is the representation of the extent of global diversity of invertebrates. What groups the four portions (A-D) represent respectively ?
| A | B | C | D | |
| 1. | Insects | Crustaceans | Other animal groups | Molluscs |
| 2. | Insects | Other animal groups | Crustaceans | Molluscs |
| 3. | Molluscs | Other animal groups | Crustaceans | Insects |
| 4. | Insects | Molluscs | Crustaceans | Other animal groups |
Which of the following statements is not true?
1. The biodiversity decreases with increasing altitude.
2. The biodiversity decreases with increasing pollution.
3. The fishes show greatest biodiversity among vertebrates.
4. The biodiversity of bryophytes is greater than that of angiosperms.
Refer the following figure represent global biodiversity. Identify A-E and choose the correct option.
| A | B | C | D | E | |
| 1. | Birds | Reptiles | Algae | Molluscs | Mosses |
| 2. | Mammals | Birds | Lichens | Molluscs | Mosses |
| 3. | Birds | Amphibians | Mosses | Insects | Algae |
| 4. | Birds | Reptiles | Algae | Insects | Mosses |
Which of the following statement is wrong about species diversity?
| 1. | More than 70 per cent of all the species recorded are animals |
| 2. | Algae and fungi comprise no more than 22 per cent of the total species diversity |
| 3. | Plants include algae, fungi, bryophyte, gymnosperms and angiosperms comprise no more than 22 per cent of the total species diversity |
| 4. | 70 per cent of the total animals come from insecta |
Which of the following statement is true about biodiversity of Earth?
1. The number of fungi species in this world is more than the combined total of the species of fishes, amphibians, reptiles and mammals
2. The number of fungi species is less than combined total of the species of fishes
3. The number of fungi species is less than combined total of the species of amphibians and reptiles
4. The number of fungi species is less than combined total of the species of mammals and birds
Which of the following organisms are not estimated in terms of diversity?
1. Prokaryotes
2. Plants
3. Fungi
4. Mosses
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