To Be Characterized as a Chordate, an Organism Must

question 72

Multiple Choice

To be characterized as a chordate, an organism must

• A) display all four key characteristics of Chordata in both the larval and adult stages.
• B) possess a backbone in at least one life stage.
• C) possess a backbone in both the larval and adult stages.
• D) display each of the four key characteristics of the chordates at some point in the life cycle.

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Definitions:

Alpha

A coefficient that often represents the level of significance in hypothesis testing, marking the threshold for rejecting the null hypothesis.

Critical Value

A point on a statistical distribution that represents the threshold for significance testing, helping decide whether to reject the null hypothesis.

Alpha

The pre-determined significance level in hypothesis testing, often set at 0.05, which defines the likelihood of observing a result at least as extreme as the one seen in the sample data if the null hypothesis is true.

T-statistic

A type of statistic used in hypothesis testing, calculated as the ratio of the departure of an estimated parameter from its hypothesized value to its standard error.