Some Bird Bones Are Hollow Rather Than Honeycombed

question 98

Multiple Choice

Some bird bones are hollow rather than honeycombed. The hollow bones mostly contain air sacs. The replacement of bone marrow with air sacs is properly understood as an adaptation to

• A) reduce the weight of the bird.
• B) facilitate flight.
• C) eliminate the functions that marrow performs.
• D) All three of the options listed are correct.
• E) Only two of the options listed are correct.

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Definitions:

Average Collection Period (ACP)

A financial metric that measures the average number of days it takes for a company to collect payments from its credit sales.

Sales Projection

An estimate of the future sales figures of a product or service, based on market research, historical data, and other predictive techniques.

Accounts Receivable

Unsettled payments from clients to a company for goods or services that have been offered but not yet paid for.

Average Collection Period (ACP)

The average amount of time it takes for a business to receive payments owed by its customers.