What Is the Single Unique Characteristic That Distinguishes Extant Birds

question 30

Multiple Choice

What is the single unique characteristic that distinguishes extant birds from other extant vertebrates?

• A) endothermy
• B) feathers
• C) an amniotic egg
• D) flight
• E) a four-chambered heart

Describe the characteristics and composition of the air we breathe.

Recognize the groups and categories within the periodic table, including the halogens and noble gases.

Understand the basics of alloy composition and the distinction between mixtures and compounds in context.

Identify the environmental and health implications of specific chemicals found in water sources.

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Definitions:

Annual Interest Rate

The percentage increase in money per year, including compounding, that an investment or loan grows.

Decimal Places

The number of digits to the right of the decimal point in a decimal number, indicating its precision.

Compounded Daily

A method of calculating interest where the interest earned is added to the principal daily, resulting in earning interest on interest.

Effective Yield

A measure of the return on an investment, considering the compound interest rate.