It Has Been Observed That Organisms on Many Islands Are

question 38

Multiple Choice

It has been observed that organisms on many islands are different from, but closely related to, similar forms found on the nearest continent. Which of the following possible conclusions is best derived from this observation?

• A) Island forms are descended from mainland forms.
• B) Common environments are inhabited by the same organisms.
• C) Island forms and mainland forms have identical gene pools.
• D) The island forms and mainland forms are converging.

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Definitions:

Less Than

A comparative term used to indicate that one quantity or number is smaller than another.

Z-scores

A numerical indicator showing how a specific value compares to the average of a set of numbers, expressed by how many standard deviations it is from the average.

Standard Normal Distribution

A normal distribution with a mean of 0 and a standard deviation of 1, used as a basis for comparison in statistical analysis.

Greater Than

A mathematical comparison indicating that one quantity is larger than another.