Which Feature Is Not Found in the Chordate Lineage

question 165

Multiple Choice

Which feature is not found in the chordate lineage?

• A) Bilateral symmetry
• B) Dorsal hollow nerve cord
• C) External skeleton
• D) Pharyngeal slits at some stage of development
• E) Notochord at some stage of development

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Definitions:

Ivan Pavlov

A Russian physiologist known for his work in classical conditioning, demonstrating how stimuli can trigger an association to responses, famously illustrated by his experiments with dogs.

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A process of behavior modification in which an individual's response to a stimulus becomes modified, or conditioned, through reinforcement or punishment.

Psychiatric Social Worker

A mental health professional who combines social work and psychiatric treatment to help patients cope with mental illness.

Medical Training

The education and practice activities designed to teach and equip medical professionals with the knowledge and skills required to perform in their respective fields.