Oy oy oy o
Response Response Response
Receptor Receptor Hormone Receptor released
- Figure 3 Hormone systems. (a) Autocrine hormones affect the cell that secreted them. (b) Paracrine hormones affect local tissues. (c) Endocrine hormones are transported in the circulatory system to affect distant organs.
function to synchronize and induce reproductive activity, and to define territorial boundaries.
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