In the Worksheet, Research Question 2, What Is the Correct

question 5

Multiple Choice

In the worksheet, Research Question 2, what is the correct degrees of freedom (df) to use for the analysis?

• A) 78
• B) 3.208
• C) 54.713
• D) 3.033

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Definitions:

Cretaceous Period

A division of Earth’s history lasting from about 145 to 66 million years ago, marked by the dominance of dinosaurs and the appearance of flowering plants.

Gymnosperms

Seed-producing plants such as conifers that do not have flowers or fruit, with seeds often exposed or on the surface of scales or leaves.

Bryophytes

Non-vascular plants that include mosses, liverworts, and hornworts, characterized by their life cycle stages and lack of vascular tissue.

Ferns

A group of non-flowering plants that reproduce via spores and have large, divided leaves known as fronds.