Use the Following Figure and Information to Answer the Question

question 3

Multiple Choice

Use the following figure and information to answer the question.

Fishes that have swim bladders can regulate their density and, thus, their buoyancy. There are two types of swim bladder: physostomous and physoclistous. The ancestral version is the physostomous version, in which the swim bladder is connected to the esophagus via a short tube (see the figure) . The fish fills this version by swimming to the surface, taking gulps of air, and directing them into the swim bladder. Air is removed from this version by "belching." The physoclistous version is more derived and has lost its connection to the esophagus. Instead, gas enters and leaves the swim bladder via special circulatory mechanisms within the wall of the swim bladder.
Which shark structure is closest in function to a swim bladder full of gas?

• A) its lateral line system
• B) its spiral valve
• C) its liver
• D) its gills

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Definitions:

Net Credit Sales

Net credit sales is the total revenue generated from sales made on credit, after subtracting any returns or allowances.

Average Accounts Receivable

The average amount of money owed to a company by its customers for goods or services sold on credit over a specific period of time.

Earnings per Share

A financial metric that indicates how much profit a company makes for each share of its stock, calculated as net income divided by the number of outstanding shares.

Weighted Average

A calculation that takes into account the varying degrees of importance of the numbers in a dataset, often used in inventory valuation.