Bisphenol-A (BPA) is an endocrine disruptor that can leach out of certain plastics. It disrupts the normal function of the endocrine system my mimicking estrogen. Which of the following explains how persistent small amounts of BPA in the body can have effects?

up-regulation

Explanation:

Upregulation is where a increases the quantity of a cellular component like protein or RNA in response to an external stimulus. By controlling the number of its receptors, cells may increase and decrease their cell sensitivity ... Hormones can also trigger cells to control themselves by upregulation. (Estrogen is the primary sex hormone for females).