According to the Concept of Punctuated Equilibrium, the "Sudden" Appearance

question 53

Multiple Choice

According to the concept of punctuated equilibrium, the "sudden" appearance of a new species in the fossil record means that ________.

• A) the species is now extinct
• B) speciation occurred in one generation
• C) speciation occurred rapidly in geologic time
• D) the species will consequently have a relatively short existence compared with other species

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Definitions:

Categorical Independent Variable

An independent variable with categorical data.

Dependent Variable

A variable in an experiment or study whose changes depend on the manipulation of the independent variables.

Logistic Regression

A statistical method for analyzing datasets in which there are one or more independent variables that determine an outcome. The outcome is measured with a dichotomous variable (in which there are only two possible outcomes).

Dependent Variable

In statistical modeling, this is the variable whose variation is being studied to see if it can be predicted or explained by variation in other variables.