WAEC - Biology (2019 - No. 15)
Which of the following statements is not true about hormones?
Their responses are voluntary
They may affect more than one target organ
They are chemical messengers in animals
They are transported by the blood to the target organs
توضیح
Hormonal responses are involuntary, meaning they are not under conscious control. The endocrine system, which secretes hormones, is responsible for involuntary activities like growth and regulating emotions.