The Discovery of Microraptor Gui Is Significant in Evolutionary Biology

question 31

Multiple Choice

The discovery of Microraptor gui is significant in evolutionary biology because it strengthened which one of the following hypotheses?

• A)Vertebrates were the first group to develop a jaw.
• B)An asteroid impact caused the extinction of dinosaurs.
• C)The echinoderm endoskeleton is a trait that identifies them as a monophyletic group.
• D)The three phyla-Echinodermata,Xenoturbellida,and Hemichordata-form a monophyletic group.
• E)Birds evolved from a dinosaur ancestor.

Understand the relationship between economics and how society allocates its limited resources.

Identify major cities and their notable Renaissance architectural landmarks.

Recognize influential Renaissance artists and their contributions to sculpture.

Identify key Renaissance artists and their contributions to fresco painting.

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Definitions:

Mean

A type of average calculated by summing values and dividing that sum by the number of values.

Average Scores

The mean value calculated by adding all the scores together and dividing by the number of scores.

Dependent-Samples T-Test

A statistical procedure used to compare the means of two related groups, indicating whether there's a significant difference under the assumption of normally distributed differences.

Research Hypothesis

A specific, testable prediction about the expected outcome of a study, often implying a relationship between variables.