Which of the Following Is True of the Sponges

question 27

Multiple Choice

Which of the following is true of the sponges?

• A)Their larvae are motile,and move via the motion of cilia.
• B)They are the simplest diploblastic animals.
• C)They exhibit bilateral symmetry.
• D)They have a nerve net but not a CNS.
• E)Their feeding cells are called choanoflagellates.

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Definitions:

Operational Definition

A clear, precise definition of a variable that specifies how it will be measured or manipulated in a study.

Operationalize

The process of defining a research variable or concept so it can be measured or empirically examined.

Mood Swing

Rapid and intense changes in emotional state or mood.

Negative Linear Relationship

A relationship in which increases in the values of the first variable are accompanied by decreases in the values of the second variable.