Which of these will give the MOST accurate and precise measurement of 15mL of liquid to be placed in a test tube?

there are so many examples for that in different areas, like biology experiment carried out in our lab recently.

here's one link:

phaneritic textures in which phaner means visible so phaneritic textures are standard of impertinent volcanic rocks. these rocks crystallized gradually under the surface of earth. when the magma cools deliberately then the ores have chance to develop and produce long crystals.