In which of the zones shown in this depiction of an aquatic biome does photosynthesis occur? 
Definitions:
Physiological Arousal
Involves the activation of the body's state, preparing an individual for action and is often linked to emotional responses.
Emotional Response
A person's immediate and spontaneous reaction to a stimulus, which could be feelings of happiness, sadness, anger, or fear.
Facially Expressed
Pertaining to emotions, intentions, or communications conveyed through facial movements and expressions.
Brows Drawn
A facial expression where the eyebrows are pulled together, typically indicating worry, concentration, or anger.
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