You are dissecting a fish in your biology laboratory section. your teaching assistant points out a long oval structure and tells you it is an endocrine gland. which of the following would you then know is a true statement about this structure?

a) it secretes a product that is released through a series of ducts.
b) the gland's product will only interact with receptors on the cell membrane.
c) the gland's product is lipid soluble.
d) the gland produces and secretes its product into the blood.