What is the mechanism by which the secretion of a hormone is followed by travel to a distant target cell

induction or repression of enzymes

Explanation:

Hormones are chemical messengers which are secreted by endocrine glands and regulate the rate of existing activities, usually through the induction or repression of enzymes within distant target cells via the endocrine system. They travel in the bloodstream, having slower, but longer lasting effect and are effective in small quantities.

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i don't know why i put this, i know its not the i was just bored : p

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