Which of the Following Explanations of Diurnal Vertical Migrations Cannot

question 6

Multiple Choice

Which of the following explanations of diurnal vertical migrations cannot be excluded by available data?

• A) Predation is stronger near the surface during daylight
• B) The zooplankton are seeking a certain temperature, which varies between day and night
• C) Strong light is harmful
• D) Zooplankton are responding directly and only to diurnal changes in ambient light

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Definitions:

Correlational

A research method that examines the relationship between two or more variables to determine if a change in one variable is associated with a change in another.

Observational

Relating to the method of gaining knowledge by watching and analyzing behaviors without intervening or altering the situation.

Significant

Having a meaningful, important, or noticeable effect or influence.

Probability

A measure of the likelihood that an event will occur, expressed as a number between 0 and 1, where 0 indicates impossibility and 1 indicates certainty.