Question

controls drinking and eating behavior; excretory; circulatory; nervous; muscular

Explanation:

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

• Excretory: Removes waste, not related to behavior control.
• Circulatory: Transports nutrients, gases, etc., not behavior control.
• Muscular: Enables movement, not behavior control.
• Nervous: The nervous system (including the brain) regulates and controls behaviors like eating and drinking through neural signals and hormonal influences (e.g., hypothalamus for hunger/thirst).

Answer:

Nervous (the red - colored box labeled "Nervous")