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.

he forelimbs below belong to four species that descended in a direct line from the ancestral mammal shown above. of the four descendants shown, which species most likely appeared earliest in evolutionary history?

they had the law tat factories that produces smoke cannot be built near residential buildings.

building of proper sewage system was done to ensure that the waste is carried away from the humans so that they do not get diseases from it.

also they built water systems to provide water in those areas which are drought prone.