Segmentation Was First Apparent in The

question 25

Multiple Choice

Segmentation was first apparent in the:

• A)flatworms
• B)annelids
• C)chordates
• D)vertebrates

---

Definitions:

Dependent Variable

The variable in a study that is expected to change as a result of variations in another variable, known as the independent variable.

Investigator

A person who carries out a formal inquiry or investigation, often in a professional context.

Empirical Approach

A method of inquiry that relies on direct observation and experiment to gather data and evidence.

Independent Variable

An element in research that is manipulated or changed to observe its effect on a dependent variable, thereby testing hypotheses in experimental studies.