Scenario Over the Past 60 Years, Many Amphibian Species Have Experienced

question 40

Multiple Choice

Scenario
Over the past 60 years, many amphibian species have experienced significant population declines, and some species have become extinct. Scientists suspected that local human activities such as the destruction of wetlands, regional pollution, and deforestation were the main reasons for these losses. However, research over the past 20 years reveals significant amphibian population declines in protected areas of the world, such as nature preserves and parks. These global declines suggest widespread problems, including increased ultraviolet radiation, acid rain, and disease. In Switzerland, for example, 14 of the 20 native amphibian species are threatened with extinction.
-Some biologists urge the collection of the few remaining individuals of some of the most threatened amphibian species in order to preserve them if they become extinct in the wild. If such captive-breeding programs could produce thousands of individuals from just a few of the remaining survivors, the species will still be threatened because of ________.

• A)a bottleneck effect
• B)directional selection
• C)mutations
• D)artificial selection

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Definitions:

Exponential Function

A mathematical function denoted as f(x) = a * b^x, where 'b' is a positive real number, and 'a' is a constant, used to model growth or decay processes.

Linear Function

A mathematical expression that represents a straight line, characterized by a constant rate of change.

Outsourcing Decision

The process of determining whether certain business operations or services should be performed in-house or contracted to external providers.

Spreadsheet

A digital worksheet that organizes data in columns and rows, allowing for data manipulation and analysis, commonly used in business and finance.