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Biology: The Dynamic Science (Mind...

4th Edition
Peter J. Russell + 2 others
ISBN: 9781305389892

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BuyFindarrow_forward

Biology: The Dynamic Science (Mind...

4th Edition
Peter J. Russell + 2 others
ISBN: 9781305389892
Textbook Problem

Which of the following is most likely to be a biodiversity hotspot?

a. a patch of forest in the middle of North America that is500 km from the nearest big city

b. a series of uninhabitable sand dunes in the Sahara Desert

c. a botanical garden that houses representatives of 25,000 plantspecies

d. a tropical island with many endemic species and a growinghuman population

e. a suburban neighborhood where fields have been convertedto backyards and playgrounds

Summary Introduction

Introduction:

Biodiversity hotspots are the regions in the world that have significant levels of biodiversity. These levels have been threatened by human civilization. Norman Myer introduced the concept of biodiversity hotspot and called it the earth’s biologically richest region and endangered terrestrial ecoregions.

Explanation

Justification for the correct answer:

Option (d) is, ‘the most likely place that can be a biodiversity hotspot is the tropical island as it has many endemic species and a growing human population.’ The species inhabiting that region are already endemic and the growing human population would hamper their habitat. The growing human population interferes with their food, habitat, and breeding. Hence, option (d) is correct.

Justification for the incorrect answers:

Option (a) is, ‘a biodiversity hotspot is most likely to be a patch of forest in the middle of North America, which is 500 km from the nearest big city.’ This forest is very far from the big city and its residents. A place should have endemic species for qualifying as a biodiversity hotspot. So, it is an incorrect option.

Option (b) is, ‘a series of uninhabitable sand dunes in the Sahara desert is most likely to be a biodiversity hotspot...

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