The delivers bile from the liver to the duodenum where digestion is completed.

Bile duct

Explanation:

Bile is required in the digestion of fats and oils through emulsification. The bile duct delivers this bile from the hepatic ducts of the gallbladder from where bile is temporarily stored. Bile is green in color. Blockage of the duct results to a condition called jaundice where the bilirubin (the main component of bile) accumulates in the blood causing yellowing of eyes and skin.

your answer is "the 1950's"

when atoms of different types of elements join together, they make molecules called compounds. water consists of compound molecules made up of 2 hydrogen atoms and 1 oxygen atom. this is why it's called h2o. water will always have 2 times the number of hydrogen atoms as oxygen atoms.