Which Is the Only Class of Echinoderms Where the Oral

question 58

Multiple Choice

Which is the only class of echinoderms where the oral surface is not oriented to the substrate?

• A)Asteroidea.
• B)Ophiuroidea.
• C)Holothuroidea
• D)Crinoidea.
• E)Echinoidea.

---

Definitions:

Descriptive Statistics

Statistical procedures that organize and summarize research data.

Statistically Meaningful

Refers to results or data that are significant enough from a statistical standpoint to indicate a non-random pattern or effect.

Inferences

The process of drawing logical conclusions from premises known or assumed to be true.

Meta-Analysis

A statistical technique that combines the results of multiple scientific studies to arrive at a conclusion about an overall body of research.