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

Subtopic:  Magnitude of Biodiversity |
 89%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
Links
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

For many taxonomic groups, species inventories are more complete in

1. Temperate countries

2. Tropical countries

3. Grasslands

4. Both (2) and (3)

Subtopic:  Magnitude of Biodiversity |
 54%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
Links
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

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

Subtopic:  Magnitude of Biodiversity |
 81%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
Links
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

According to Robert May, the global species diversity is

(1) About 20 billion

(2) About 7 billion

(3) About 7 million

(4) About 20 million

Subtopic:  Magnitude of Biodiversity |
 69%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
Links
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

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

Subtopic:  Magnitude of Biodiversity |
 70%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
Links
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Among animals, which of the following is the most species-rich taxonomic group?

(1) Insects

(2) Molluscs

(3) Crustacean

(4) Other animal groups

Subtopic:  Magnitude of Biodiversity |
 97%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
Links
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

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

Subtopic:  Magnitude of Biodiversity |
 87%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
Links
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Which of the following organisms are not estimated in terms of diversity?

(1) Prokaryotes

(2) Plants

(3) Fungi

(4) Mosses

Subtopic:  Magnitude of Biodiversity |
 94%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
Links
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Prokaryotes have not been estimated in terms of biodiversity. Which of the following reasons does not hold true?

1. Conventional taxonomic methods are not suitable for identifying microbial species

2. Many species are simply not culturable under laboratory conditions

3. Lichens do not allow them to be assessed because of close association

4. Both (1) and (3)

Subtopic:  Magnitude of Biodiversity |
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
Links
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

India has only…….per cent of the world's land area, it's share of the global species diversity is an impressive ……. per cent

(1) 2.4, 12

(2) 2.4, 8.1

(3) 8.1, 12

(4) 8.1, 2.4

Subtopic:  Magnitude of Biodiversity |
 90%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
Links
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh