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The Endocrine System regulates long - term processes like , ____________________ , ____________________ . and ____________________ . It also uses ____________________ messengers to relay information and instructions between cells .

Target cells are specific cells that possess ____________________ needed to ____________________ and ? read ? hormonal messages

Hormones stimulate synthesis of ____________________ or structural proteins , Increase or decrease rate of ____________________ , and turn existing enzyme or ____________________ ____________________ ? on ? or ? off ?

Hormones can be divided into three groups , Amino acid ____________________ , ____________________ hormones , ____________________ derivatives

Hormones ____________________ freely or travel bound to special ____________________ ____________________