Which of the Following Statements About the Skeleton of a Clam

question 18

Multiple Choice

Which of the following statements about the skeleton of a clam is NOT true?

• A)The skeleton of a clam has two separate shells.
• B)The skeleton of a clam grows with the organism.
• C)The skeleton of a clam is made of calcium carbonate.
• D)The skeleton of a clam is used mainly to allow movement of the organism.
• E)The skeleton of a clam has muscles attached to it from the inside of the body.

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Definitions:

Tropic Molecules

Substances that guide the growth or movement of developing cells or parts of an organism in response to certain stimuli.

Growth Cones

Dynamic, actin-supported extensions of a developing or regenerating neurite seeking synaptic partners by sensing their environment.

Neurotrophic Factors

Proteins that support the growth, survival, and differentiation of neurons and synaptic connections in the nervous system.

Adhesion Molecules

Proteins located on the cell surface that are involved in the binding with other cells or with the extracellular matrix.