Question

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

Explanation:

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

• Circulatory System: Transports blood, nutrients, and oxygen; does not control eating/drinking.
• Excretory System: Removes waste; not related to eating/drinking control.
• Muscular System: Enables movement; not involved in regulating eating/drinking.
• Nervous System: Coordinates and controls bodily functions, including regulating hunger, thirst, and associated behaviors through neural signals (e.g., hypothalamus).

Answer:

Nervous (the blue - colored option labeled "Nervous")