Chapter 3, Problem 21A

Summary Introduction

Introduction:

The biomes are the larger area having the same type of climate and similar flora and fauna. Species diversity is the measure of numbers of different species living in that area. Greater the number of species in an area, the greater is the species diversity.

Answer to Problem 21A

Correct Answer:

Option (D) tropical rain forest.

Explanation of Solution

Explanation/justification for the correct answer:

Option (D) tropical rain forest. The diversity of species can be found where the conditions are not too harsh and the distribution of resources are high. Tropical rain forests are rich in all the resources and the climatic conditions are moderate, which makes it suitable for living for many organism. Hence, it is the correct answer.

Explanation for incorrect answer:

Option (A) Tundra. The tundra regions are cooler; hence, they do not support high amount of vegetation, which ultimately cannot support animals too. Hence, it is an incorrect answer.

Option (B) grassland. The grassland does not have long trees, so, stratification in the ecosystem is not possible, which lead to decrease in diversity of the organism that live on long trees. Hence, it is not correct.

Option (C) desert. The deserts are characterized by low vegetation, which cannot support more animals too. Hence, it is an incorrect answer.