Hummingbirds' Small Size Allows Them to Hover While Extracting Nectar

question 24

Multiple Choice

Hummingbirds' small size allows them to hover while extracting nectar from various flowers. This same small size requires large amounts of calories to maintain body temperature because

• A)the breeze from their flapping wings constantly cools them off.
• B)hummingbirds only eat at night.
• C)they have a large body mass relative to their surface area.
• D)hovering requires less energy than forward flight.
• E)they have a large surface area relative to their body mass.

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Definitions:

Standard Form

In mathematics, a way to write numbers using the digits 0-9, with each digit having a place value. In algebra, a standard form of an equation might be ax + by = c.

Greatest Common Monomial Factor

The greatest common monomial factor between two or more monomials is the highest monomial that divides each of the monomials without a remainder.

Polynomial

A polynomial is a mathematical expression involving a sum of powers in one or more variables multiplied by coefficients.

Greatest Common Monomial Factor

The largest monomial that divides each term of a given polynomial without a remainder.