Which Statement About Animal Defense Systems Is True

question 126

Multiple Choice

Which statement about animal defense systems is true?

• A) Innate defenses act slowly.
• B) During the effector phase of a defensive response, an effector discriminates between self and nonself.
• C) Innate defenses evolved after adaptive defenses.
• D) Animal defense systems are based on differentiating between self and nonself molecules.
• E) During the activation phase of a defensive response, cells and molecules destroy the invader.

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Definitions:

Wilcoxon Signed Rank Test

Utilized for comparing two related samples to determine if there are significant differences between their population mean ranks, especially when the population cannot be assumed to be normally distributed.

Null Hypothesis

The presumption of no significant difference or association in a set of data, serving as a default position in hypothesis testing until evidence suggests otherwise.

Aluminum Concentrations

The measured levels of aluminum in a given sample or environment.

Test Statistic

A statistic used to estimate the parameter of interest in a statistical hypothesis test.