What is the name of the endocrine mode of reflex stimulation that releases hormone (s) due to direct stimulation from changing levels of nutrients or ions in the blood?

Answer: Humoral Stimulation

Explanation:

Humoral stimulus refers to the control of hormone release in response to changes in extracellular fluids. Humoral stimulus is also as result of reflex stimulation that releases hormone due to direct stimulation from changing levels of nutrients or ions in the blood, such as the ion concentration in the blood. Some hormones are secreted in direct response to changing blood levels of ions and nutrients.