Which of These Characteristics Is NOT Associated with Flight Requirements

question 12

Multiple Choice

Which of these characteristics is NOT associated with flight requirements in birds?

• A)feet with claws
• B)light,hollow bones
• C)a light,horny beak with no teeth
• D)respiratory air sacs and lungs with one-way air flow
• E)an enlarged breastbone with strong muscles attached

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Definitions:

Reactants

Original substances involved at the beginning of a chemical reaction, used throughout to form the end products.

Chemical Equation

A representation of a chemical reaction using symbols of the elements and formulae of compounds.

Coefficients

Numbers placed before the symbols or formulas in a chemical equation, indicating the relative amounts of substances involved in the reaction.

Balanced Equation

A chemical equation in which the number of atoms for each element in the reaction and the total charge are the same on the reactants side and the products side.