NEET 1999 · Class 12

Biodiversity and Conservation

Which part of the world has a high density of organisms?

  1. (A)Deciduous forests
  2. (B)Tropical rain forests
  3. (C)Grasslands
  4. (D)Savannas

The NCERT line that answers it

Verbatim line

The largely tropical Amazonian rain forest in South America has the greatest biodiversity on earth- it is home to more than 40,000 species of plants, 3,000 of fishes, 1,300 of birds, 427 of mammals, 427 of amphibians, 378 of reptiles and of more than 1,25,000 invertebrates.

Chapter
Biodiversity and Conservation
Section
13.1.2 Patterns of Biodiversity
Page
3
Words matched
46 of 46

The answer appears as a continuous sentence in NCERT. This is that sentence.

How this line gives the answer

0, emb=1.0, combined=1.0). Verified: high — The span explicitly states that the Amazonian rain forest (a tropical rain forest) has 'the greatest biodiversity on earth' and provides specific species counts, directly supporting that tropical rain forests have high organism density.

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Question text is reproduced from the published NEET 1999 paper for study and commentary. NCERT text is quoted, not redistributed; textbooks remain at ncert.nic.in. Our mapping method, including its measured error rates, is published at /methodology.