[Solved] How does caffeine improve athletic performance? A)it sends more nerve impulses to muscles B)it causes the body to burn more fat for energy C)it stimulates mitochondria to produce more ATP D)it directly speeds up muscle contractions Compound Light Microscope: An optical instrument that uses visible light and a system of lenses to magnify small objects or details not visible to the naked eye. 3-Dimensional: Describes an object or representation that includes depth, width, and height, providing a perception of volume and space. Working Distance: The distance between the objective lens of a microscope and the surface of the sample being observed. Objective Lens: A component of a microscope closest to the object being examined, focusing light or electrons to produce a magnified image.