Spiral Cleavage in Early Development

question 201

Multiple Choice

Spiral cleavage in early development

• A) occurs in all lophotrochozoans.
• B) is a useful trait for establishing evolutionary relationships among organisms.
• C) occurs only in wormlike groups of lophotrochozoans.
• D) may have been present in the lophotrochozoan ancestor.
• E) always results in adult organisms that have similar body plans.

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The percentage of disposable income that is set aside as savings instead of being expended on goods and services.

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An increase in a country's capacity to produce goods and services, compared from one period of time to another.

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Individuals engaged in any form of employment or labor to produce goods or provide services.

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