A Shared Ancestral Characteristic Used in Cladistics Is Found

question 17

Multiple Choice

A shared ancestral characteristic used in cladistics is found

• A) only in the two most recent ancestors.
• B) only among the members of the ingroup.
• C) in both the outgroup and the ingroup.
• D) in two of the outgroups.
• E) only in the most distant ancestor. A shared ancestral trait is one that is presumed to have appeared in the common ancestor to the members of both the ingroup and outgroup. It is not a shared derived trait, so it is not used to construct the cladogram.

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Definitions:

Wanting

An organism’s motivation to obtain a reward.

Intrinsic Reward

A reward or form of motivation that comes from within an individual, driving behavior for the inherent satisfaction or pleasure derived from the activity itself.

Extrinsic

Originating from outside an individual, often referring to motivations or rewards that are external rather than internal.

Implicit

Something implied or understood though not directly expressed.