What Name Is Given to the Group Consisting of Echinoderms

question 79

Multiple Choice

What name is given to the group consisting of echinoderms and hemichordates?

• A) Acoels
• B) Ambulacrarians
• C) Xenoturbellids
• D) Echinozoans
• E) Asterozoans

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Definitions:

Nonzero Differences

Instances where there is a measurable or observable difference between two entities or measurements, not equal to zero.

Wilcoxon Signed-Rank Test

Employing no assumptions about data parameters, this statistical test is used for examining whether the population mean ranks differ across two related samples, matched samples, or repeated tests on the same individual sample.

Paired Experiment

A study design where participants are matched in pairs and each pair is treated differently to investigate the effects of the treatment.

Test Statistic

A value calculated from sample data during a hypothesis test that is used to determine whether the null hypothesis can be rejected.