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:

Hedge

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Foreign Currency

Foreign Currency is the currency of another country, which is required for conducting international transactions or investments.

Annual Repayments

are fixed amounts paid back by a borrower to a lender at regular intervals over a year to reduce or settle a loan's principal and interest.