Some Animals Have No Gills When Young, but Then Develop

question 49

Multiple Choice

Some animals have no gills when young, but then develop gills that grow larger as the animal grows larger. Which of the following statements provides the best explanation for this increase in gill size?

• A) The young of these animals are much more active than the adult, which leads to a higher BMR (basal metabolic rate) and, therefore, a higher need for oxygen.
• B) Relative to their volume, the young have more surface area across which they can transport all the oxygen they need.
• C) The young have a higher heart rate and thus a lower demand for oxygen.
• D) Relative to their surface area, the young have more body volume in which they can store oxygen for long periods of time.

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Definitions:

Bonds Payable

Long-term liabilities represented by promissory notes issued by a company to raise capital, to be repaid at a future date.

Installment Note

A debt instrument that requires the borrower to make regular payments (installments) of principal and interest over a set period until the total debt is paid.

Journal Entry

A record in the books of accounts that represents a transaction and its effect on various accounts.

Interest Expense

The financial charge for an entity using borrowed capital over a time frame.