Endocrine disruptors can disrupt the endocrine system in two ways. They can mimic normal hormones, or they can block normal hormones. The diagram above shows a) how normal hormones work, b) how hormone mimics work, and c) how hormone blockers.
Which of the following is/are true?
I. Normal hormones interact with cells and cause a cellular response.
II. Hormone mimics cause increased cellular response.
III. Hormone blockers cause increased cellular response.
IV. Hormone mimics cause decreased cellular response.