Use the Following Information and Figure to Answer the Question

question 44

Multiple Choice

Use the following information and figure to answer the question.
The sea slug Pteraeolidia ianthina (P. ianthina) can harbour living dinoflagellates (photosynthetic protists) in its skin. These endosymbiotic dinoflagellates reproduce quickly enough to maintain their populations. Low populations of the dinoflagellates do not affect the sea slugs very much, but high populations (> 5 x 105 cells/mg of sea slug protein) can promote sea slug survival.
Percent of sea slug respiratory carbon demand provided by indwelling dinoflagellates.
-Which of the following would be a potential disadvantage to the sea slugs of housing the dinoflagellates?

• A) The CO₂ produced by the dinoflagellates would poison the sea slug.
• B) The dinoflagellates would be an energy drain on the sea slug.
• C) The sea slugs are exposed to predators when they spend time in the sunlit areas needed by the dinoflagellates.
• D) The dinoflagellates will reduce the ability of the sea slugs to move.

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Definitions:

Standard Deviation

A statistic that measures the dispersion or variation of a dataset relative to its mean, indicating how spread out the data points are.

Population Mean

The average value of all items in a population, representing the central point of a data set.

Confidence Interval

A range of values, derived from sample statistics, that is used to estimate the true value of a population parameter with a certain level of confidence.

Population Mean

The average value of all the individuals or elements within a complete population.