Cleaner Wrasse Are Mutualists of Other Coral Reef Fishes

question 16

Multiple Choice

Cleaner wrasse are mutualists of other coral reef fishes. What benefit do they provide to those other fish?

• A) They suppress diseases because they consume carcasses of dead fish.
• B) They keep water oxygenated because they consume organic debris before it can rot.
• C) They keep fish relatively free of externally feeding parasites.
• D) They maintain fish habitat by keeping corals free of encrusting algae.
• E) They reduce fish mortality by repelling large vertebrate predators.

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Definitions:

Median

When values in a dataset are sorted from least to greatest or the opposite, the median is the value that sits in the center.

Set of Data

A collection of related information or variables, typically numeric, organized for analysis.

Mean

A statistical measure that represents the average value of a set of numbers.

Set of Data

A collection of data points or values that have been gathered to provide information for analysis.