A Small Marine Amphipod Has Recently Been Discovered That Carries

question 9

Multiple Choice

A small marine amphipod has recently been discovered that carries a bad-tasting organism on its back,which is contrary to its normal behavior.If a fish ingests the pair,it immediately spits them back out.If the amphipod is alone,however,it is readily eaten.There is no apparent benefit or harm in this relationship for the "backpack" organism.This is probably a case of

• A)mutualism.
• B)parasitism.
• C)commensalism.
• D)competitive exclusion.

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Definitions:

Operating Income

The profit realized from a business's ongoing operations, calculated before interest and taxes.

Statement of Cash Flows

A financial statement that summarizes the amount of cash and cash equivalents entering and leaving a company.

Shares of Stock

Units of ownership interest in a corporation or financial asset, representing an equal proportion of the company's capital.

Comparative Balance Sheets

Financial statements that present the financial position of a company at different points in time, allowing for analysis of trends and changes.