Based on the Findings of Hansen, Which Statement About Marine

question 34

Multiple Choice

Based on the findings of Hansen, which statement about marine gastropods is true?

• A) The average geographic range of direct-developing species is larger than that of species with swimming larval stages.
• B) The average geographic range of direct-developing species is smaller than that of species with swimming larval stages.
• C) According to the fossil record, species with swimming larvae were more prone to extinction than direct-developing species.
• D) According to the fossil record, species with swimming larvae had smaller geographic ranges and were therefore less prone to extinction.

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Definitions:

Observed Values

The actual values that are measured or collected during an experiment or survey.

Predicted Values

In statistics, these are the estimated outcomes based on a regression model or other predictive model.

Coefficient of Determination

A statistical measure represented by R² that assesses the extent of variance in a dependent variable that is predictable from the independent variable(s).

Regression Model

A statistical framework that predicts the connection between a dependent variable and one or several independent variables.