The Minimum Age of the LUCA (Last Unique Common Ancestor)is

question 30

Multiple Choice

The minimum age of the LUCA (last unique common ancestor) is the age of the oldest fossils that can be identified with certainty as close relatives of present-day prokaryotes and eukaryotes.Such fossils are about ________.

• A) 3.8 billion years old
• B) 2 billion years old
• C) 542 million years old
• D) 3.28 billion years old
• E) 65 million years old

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Definitions:

Conditions of Worth

Standards imposed by others that one feels they must meet to be valued and loved, a concept in Carl Rogers' person-centered therapy.

Descriptive

Pertaining to the detailing or explanation of characteristics.

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Information based on personal accounts, observations, or stories, rather than systematic scientific evaluations.