Many, Though Not All, Mollusks Have a Shell

question 34

Multiple Choice

Many, though not all, mollusks have a shell.What secretes the shell?

• A)The foot
• B)The mantle
• C)The radula
• D)The visceral mass

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Definitions:

Learning Disability

A neurological disorder that affects a person's ability to read, write, speak, spell, or calculate, varying greatly among individuals and often co-occurring with other disabilities.

Process Model

A representation of a sequence of operations or activities, in either graphical or textual form, used to understand and analyze how processes work.

Cognitive Development

Refers to the process of growth and change in intellectual/mental abilities such as thinking, reasoning, and understanding over the course of a person's life.

Ceiling Level

The upper limit of an individual's performance capability on a particular test or assessment, beyond which no higher scores can be achieved due to limitations of the test.