NASA Has Published a List of Criteria for Identifying Fossil

question 18

Multiple Choice

NASA has published a list of criteria for identifying fossil bacteria in samples from Mars, as part of a search for evidence of life. Which of the following is good evidence for the presence of bacterial cells?

• A) Three-dimensional organization of cells in a starburst pattern
• B) Absence of carbon in the material
• C) Cell size of 0.5 to 2 microns
• D) No evidence of water in the surrounding mineral

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Definitions:

Automatic Attitudes

Very fast evaluative, “gut-level” responses that people don’t think a great deal about

Deliberate Attitudes

Reflective responses that people think more carefully about.

Racism

Prejudiced attitudes toward a particular race.

Negative Attitude

A negative attitude is a predisposition or a tendency to respond unfavorably or with dislike towards a particular idea, person, thing, or situation.