Oceans Were a Good Environment for Early Organisms Because They

question 9

Multiple Choice

Oceans were a good environment for early organisms because they

• A) contained ozone.
• B) shielded organisms from visible light.
• C) obviated the need for a cell membrane.
• D) shielded organisms from ultraviolet light.
• E) were rich in oxygen.

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Definitions:

Whole Number

An integer value that is not fractional or decimal, positive, negative, or zero.

Implied Decimal

A decimal point not explicitly shown but understood in the context of the number.

Multiples

Numbers that are the product of a given number and any other whole number.

Number 4

A numerical digit representing a quantity equivalent to the sum of 2 + 2.