During the Time of Pangaea,an Ancestor of Modern Crocodiles Inhabited

question 60

Multiple Choice

During the time of Pangaea,an ancestor of modern crocodiles inhabited the region marked by the star in this map (left in the following figure) . Where would you expect to find fossils of this animal today (the map on the right) ?

• A) Northern Hemisphere
• B) on every continent
• C) Africa
• D) Antarctica

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Definitions:

Positive Predictive Value

The probability that individuals with a positive test result actually have the disease.

Specificity

The ability of a test to correctly identify those without the disease or condition being tested for.

Positive Predictive Value

The probability that subjects with a positive screening test truly have the disease.

Prevalence

The total number of cases of a disease that exist in a particular population at a specific time.