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:

Expense Accounts

Accounts used to record the consumption of economic benefits during the operational period, contributing to revenue generation.

Income Summary

An account used in the closing process that summarizes revenues and expenses for a period before transferring the balance to retained earnings.

Revenue Account

An account that tracks the income earned by a company from its normal business operations, excluding expenses.

Debit

The left side of an account.