Refer to the figure showing the digestive system of two animals. 
What are the structures labeled "A" and "B?" How are these structures similar in the way in which they produce nutrients, and how do they differ?
Definitions:
Elongation
Elongation refers to the process of becoming longer or the state of being lengthened, often used in physics, biology, or material science contexts.
Elaboration
The process of adding more information to existing, often simpler, information to create a more complex understanding.
Reverberation
The persistence of a sound in a particular space after the original sound is produced, often used metaphorically to describe a lasting effect or influence.
Self-efficacy
The belief in one's own ability to succeed in specific situations or accomplish a task.
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