A Cockroach Has a Very "Salty" Meal

question 15

Multiple Choice

A cockroach has a very "salty" meal. Which of the following would you expect to occur?

• A)Chloride ions will be pumped into the intestinal lumen.
• B)The cockroach will drink more water than usual.
• C)Excess water will be moved from the intestinal lumen to the hemolymph.
• D)Sodium ions will be moved into the intestinal lumen.

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Definitions:

Rule of 5

A guideline in statistics that suggests if the sample size is smaller than 5, certain statistical methods, such as normal approximation, may not be reliable.

Expected Values

The mean of a probability distribution, representing the average outcome one can expect to see.

Null Hypothesis

A statement used in statistics that suggests there is no significant difference or effect, serving as the default assumption to be tested.

Chi-Squared Test

A statistical test used to determine whether there is a significant difference between the expected frequencies and the observed frequencies in one or more categories.