Problem 6 - Biology: The Dynamic Science

Question

Which of the following is most likely to be a biodiversity hotspot? a. a patch of forest in the middle of North America that is \(500 \mathrm{km}\) 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 plant species d. a tropical island with many endemic species and a growing human population e. a suburban neighborhood where fields have been converted to backyards and playgrounds

Step-by-Step Solution

Answer

The most likely biodiversity hotspot would be option (d) a tropical island with many endemic species and a growing human population.

Step 1: Definition Assessment

Understand the definition of a biodiversity hotspot. A hotspot is an area that supports a high number of endemic species, which are native and exclusive to that region. Biodiversity hotspots are often threatened by human activity. In this exercise, these defining characteristics are the major factors for identifying the right option among the given choices.

Step 2: Option Evaluation

Now, using this definition, the options can be evaluated. Option (a) is far from a city but it's not specified whether it has high endemic species. Option (b) is uninhabitable and unlikely to support many life forms. Option (c) has a lot of plant species, but a botanical garden is man-made and not exclusive. Option (d) is a tropical island with many endemic species and a growing human population - a factor often associated with threat to biodiversity. Option (e) is a converted neighborhood, which means it's likely that the biodiversity has been affected by human activities.

Step 3: Choose the Best Fit

From evaluating the options, it can be inferred that option (d) - a tropical island with many endemic species and a growing human population - best fits the definition of a biodiversity hotspot because it is an area that features both a high level of endemic species and a level of threat from human activities.