A Small Marine Amphipod Has Recently Been Discovered That Carries

question 20

Multiple Choice

A small marine amphipod has recently been discovered that carries another bad tasting organism on its back against its normal behavior.The "backpack" organism tastes bad.If a fish ingests the pair,it immediately spits them back out.If the amphipod is alone,however,the amphipod is readily eaten and swallowed.There is no apparent benefit in this relationship for the "backpack" organism which appears to be neither helped nor harmed.This is therefore a case of

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

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Definitions:

Departmental Initiatives

Actions or strategies undertaken within a specific department of an organization to meet its goals, improve performance, or address specific issues.

Annual Goals

Objectives or benchmarks set to be achieved within the timespan of a year, often used in personal, academic, or professional contexts to guide progress and performance.

Social Interactions

The processes by which individuals act and react in relation to others, involving communication, influence, and exchange between people in a social context.

Cooperation

Is the capacity to create a complex social life by establishing generally accepted ways of doing things and ideas about what is right and wrong.