A Leech Would Not Have

question 15

Multiple Choice

A leech would not have

• A) a notochord.
• B) segmentation.
• C) a ventral nerve cord.
• D) a coelom.
• E) mesoderm.

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Definitions:

F Statistic

A ratio of variances used in the analysis of variance (ANOVA) to assess the significance of the difference between group means.

Least Squares Regression

A statistical method used to determine the line of best fit by minimizing the sum of squares of the differences between observed values and those predicted by a linear model.

P-value

The probability of obtaining test results at least as extreme as the results actually observed, under the assumption that the null hypothesis is correct.

Significant

Indicating a statistically meaningful relationship or difference in data, often determined by achieving a p-value below a predefined threshold.