aeafec84_mework_Help___SchoolWorkHelper__FUNCTION
[HORMONE] Melatonin [GLAND ORIGIN] Pineal gland [TARGET TISSUE] Unclear, although possible target sites are pigment cells and sex organs [FUNCTION] 
May affect skin pigmentation; may regulate biorhythms (awake/sleep patterns) and prevent jet lag
Major Hormones: Origin, Target, Function | Online Homework Help | SchoolWorkHelper
FUNCTION