Based on the Evolutionary Tree of the Three Domains, Which

question 41

Multiple Choice

Based on the evolutionary tree of the three domains, which of the following statements is true?

• A) All three domains have a common ancestor.
• B) Domain Bacteria and domain Eukarya are more closely related to each other than to domain Archaea.
• C) The Eukarya have remained the same throughout evolutionary time.
• D) All three domains are equally related to one another.
• E) The Eukarya are the common ancestor to the three domains.

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Definitions:

LSD Method

An acronym for Least Significant Difference, a statistical technique used to determine if the means of multiple groups are significantly different.

Experimentwise Type I Error

A cumulative error rate that represents the probability of making at least one Type I error across multiple statistical tests.

Blocking Variable

A variable used in experimental design to account for potential variation across experimental units, thereby reducing the impact of confounding variables.

Dosage Level

The amount of a substance, such as medication or chemical, administered or required to achieve a desired effect.