Quick Answer. According to The Free Dictionary, etiology, also spelled aetiology, is the study of exploration of the cause or factors contributing to something. In pathology, it specifically denotes the investigation into the cause or origins of a disease. Continue Reading.
Pellets deliver consistent, healthy levels of hormones for 3-4 months in. women and 4-5 months in men. They avoid the fluctuations, or ups. and downs, of hormone levels seen with every other method of delivery.
How long does fertilizer keep? Specifically, the timed-release pellets. I have some Nutricote and some Peters in the shed that have been there for, oh, 2 to 4 or more years. The shed is under the deck in a corner formed by the house, so it's shaded and somewhat protected, but it has no climate control.