If a Phylogeny Is Based on the Natural Evolution of Organisms

question 12

Multiple Choice

If a phylogeny is based on the natural evolution of organisms, it could

• A) explain the variations among fossils from rock strata.
• B) explain why there are similarities and differences among modern living groups.
• C) reflect patterns of shared and unique sections of DNA among groups of animals.
• D) help predict where unresearched features will be in common, such as how widely a medicine will be effective among animals.
• E) All of the choices are correct.

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Definitions:

Critical Value

The threshold value that the test statistic must exceed for the null hypothesis to be rejected, dependent on the chosen significance level.

Alternative Hypothesis

A statement that contradicts the null hypothesis and proposes there is indeed a significant effect or relationship between variables.

Sample Sizes

The number of observations or subjects included in a study from which conclusions are drawn.

Test Statistic

A calculated value from sample data, used in statistical hypothesis testing to determine whether to reject the null hypothesis.