Question

2 which of the following accurately describes how the endocrine system works? carries messages by the blood sends signals through connected glands sends signals through electrical impulses responds through neurons

Explanation:

The endocrine system uses hormones, which are transported throughout the body via the bloodstream to target cells. The other options describe the nervous system (electrical impulses, neurons) or incorrect traits of the endocrine system (its glands are not physically connected to send signals directly).

Answer:

carries messages by the blood