One way that helps maintain fairly constant blood levels of hormones is
A) movement into target organs.
B) being bound to binding proteins.
C) excretion by the kidneys.
D) being broken down by enzymes.

Question

Quizplus · Accepted Answer

Hormones that are released into the bloodstream can bind to specific binding proteins, which helps to keep them in circulation and maintain fairly constant blood levels. This also prevents their too-rapid breakdown or excretion by the body.

One Way That Helps Maintain Fairly Constant Blood Levels of Hormones