Which structure produces releasing hormones? thyroid gland hypothalamus anterior pituitary posterior pituitary

it's hypothalamus

Releasing hormones are peptide hormones, which are produced within the hypothalamus and transferred via the hypothalamo-hypophyseal portal veins to the adenohypophysis, where they regulate the synthesis or release of adenohypophyseal hormones.

i think its control and coordinate because im pretty sure thats what tissue does and the joints are what control movement and then your skeletal/ bones provides portection. hope that .

because the light is a great source of energy for the plants to survive. (i hope this )