The Period Between the Time When Life First Evolved on Earth

question 176

Multiple Choice

The period between the time when life first evolved on Earth and the definitive appearance of multicellular life was about _______ years.

• A) 200 million
• B) 500 million
• C) 1 billion
• D) 3 billion
• E) 5 billion

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Definitions:

Pepsi

A global beverage brand known for producing cola and a variety of other soft drinks and products.

Complementary Goods

Products or services that are used together, thereby the demand for one is increased when the price of the other is decreased, exemplifying a direct relationship between price and demand of different goods.

Cross-Price Elasticity

A measure of how the quantity demanded of one good responds to a change in price of another good, indicating substitutability or complementarity between products.

Mechanical Pencils

Writing instruments that use replaceable and mechanically extendable solid pigment cores, known as leads, to provide a consistent line width without the need for sharpening.