Which of the Following Statements Best Describes the First Life-Forms

question 4

Multiple Choice

Which of the following statements best describes the first life-forms on Earth, which existed about 3.6 billion years ago?

• A) Microbial life began at a time when the planet's atmosphere and climate were very different from today.
• B) Microbial life began at the same time the Earth turned into a solid.
• C) Microbial life evolved rapidly into more complex life forms in only a few hundred million years.
• D) The first microbial life forms were restricted to what is now the Middle East.
• E) Evidence for the first microbial life forms is found in igneous rocks.

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Definitions:

Linear Model

A statistical model used to describe the relationship between one or more explanatory variables and a continuous response variable by a linear equation.

Scatterplot

A graphical representation that uses dots to show the relationship between two sets of data.

Data Points

Individual pieces of factual information collected for analysis.

United States

A country located in North America, comprising 50 states, a federal district, five major self-governing territories, and various possessions.