Figure 20.1 -If Figure 20.1 Is an Accurate Depiction of Relatedness, Then

question 20

Multiple Choice

Figure 20.1
-If Figure 20.1 is an accurate depiction of relatedness, then which of the following should be correct?
1) The entire tree is based on maximum parsimony.
2) If all species depicted here make up a taxon, this taxon is monophyletic.
3) The last common ancestor of species B and C occurred more recently than the last common ancestor of species D and E.
4) Species A is the direct ancestor of both species B and species C.
5) The species present at position 3 is ancestral to C, D, and E.

• A) 1 and 3
• B) 3 and 4
• C) 2, 3, and 4
• D) 1, 2, and 3

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Definitions:

Nominal Data

Represents data that can be categorized but not ranked or ordered numerically.

Interval Data

A type of numerical data that has meaningful differences between values and a true zero point.

Ordinal Data

Describes a type of data which is categorized into ordered but not necessarily equally spaced categories.

Null Hypothesis

A statement used in statistics that proposes no significant difference or effect.