The Following Questions Refer to the Description Below

question 2

Multiple Choice

The following questions refer to the description below.
Terry catches a ray-finned fish from the ocean and notices that attached to its flank is an equally long, snakelike organism. The attached organism has no external segmentation, no scales, a round mouth surrounded by a sucker, and two small eyes. Terry thinks it might be a marine leech, a hagfish, or a lamprey.
-Which feature excludes the organism from possibly being a leech?

• A) elongated shape
• B) lack of scales
• C) lack of external segmentation
• D) round mouth
• E) anterior sucker

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Definitions:

Chi-Squared Test

A statistical test used to determine if there is a significant difference between observed frequencies and expected frequencies in categorical data.

Population Variance

Population variance quantifies the dispersion of a population's values, measuring how each value differs from the mean of the population.

Chi-Squared Test

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

Test Statistic

A calculated value from sample data used to make a decision on whether to reject the null hypothesis in statistical hypothesis testing.