Question

excretory
muscular
nervous
circulatory
controls drinking and eating behavior

Explanation:

To determine which system controls drinking and eating behavior, we analyze each system:

• Excretory: Removes waste, not related to controlling eating/drinking.
• Muscular: Enables movement, not behavior control.
• Circulatory: Transports nutrients, no direct behavior control.
• Nervous: Regulates bodily functions, including hunger/thirst - related behaviors.

Answer:

Nervous