Fossil Evidence Indicates That Complex Life Forms, Capable of Generating

question 34

Multiple Choice

Fossil evidence indicates that complex life forms, capable of generating easily fossilized hard parts like shells or bones, have existed in abundance on Earth since approximately ___ years ago.

• A) 5,440
• B) 544 thousand
• C) 544 million
• D) 5,440,000,000
• E) 544,000,000,000

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Definitions:

Delayed Phase Preference

A shift in sleep patterns characterized by staying up later in the evening and sleeping later in the morning than younger children that has been associated with hormonal changes at puberty.

Sexual Dimorphism

The differences in appearance between males and females of the same species, beyond the differences in their sexual organs.

Heredity

The passing of traits from parents to offspring through genes, affecting an individual's characteristics and predispositions.

Homosexual Orientation

A sexual orientation characterized by a romantic or sexual attraction to individuals of the same gender.