[Solved] <!DOCTYPE html> creates an element known as the DOCTYPE ____, which lets user agents know that the document contents are written in HTML. A) property B) setting C) declaration D) announcement Hilum: A depression or fissure where structures such as blood vessels and nerves enter an organ. Urine Collects: Describes the process in the kidneys where the urine is accumulated in the renal pelvis before being passed into the bladder. Microscopic Structure: The detailed architecture of an object that is too small to be seen with the naked eye, often requiring a microscope for examination. Plane of Section: A specific direction through a body or structure to expose a surface for study.