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Multiple Choice
Which body system's main function is to secrete hormones to regulate body activities?
A
Endocrine System
B
Respiratory System
C
Nervous System
D
Digestive System
Verified step by step guidance
1
Identify the primary function of each body system listed in the options.
Understand that the Endocrine System is responsible for secreting hormones.
Recognize that hormones are chemical messengers that regulate various body activities.
Compare the functions of the other systems: the Respiratory System is involved in gas exchange, the Nervous System in transmitting signals, and the Digestive System in processing food.
Conclude that the system whose main function is to secrete hormones to regulate body activities is the Endocrine System.