Turbellarian Flatworms Have a Distinct Head

question 1

Multiple Choice

Turbellarian flatworms have a distinct head.When compared to the head of an insect, what is the flatworm head missing? rev: 05_14_2014_QC_49568

• A)Sensory organs
• B)Light sensitive structures
• C)Anterior collection of nerve cells
• D)A mouth

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Definitions:

Mass

Mass is a measure of the amount of matter in an object, usually in kilograms or grams.

Liquids

A state of matter characterized by an indefinite shape that conforms to the shape of its container, but with a definite volume.

Solids

Materials with a fixed shape and volume, characterized by strong intermolecular forces.

Density

A physical property defined as the mass per unit volume of a substance, often used to identify or characterize materials.