Which is the role of the gall bladder?

to provide physical digestion
to store the liquid produced by the liver
to make the liquid that is stored in the liver
to decrease the chemical digestion

The role of the Gall Bladder is to provide physical digestion.

Explanation:

The gallbladder acts as a storage vessel for bile produced by the liver. Bile is produced by hepatocytes cells in the liver and passes through the bile ducts to the cystic duct. From the cystic duct, bile is pushed into the gallbladder by peristalsis (muscle contractions that occur in orderly waves). Bile is then slowly concentrated by absorption of water through the walls of the gallbladder. The gallbladder stores this concentrated bile until it is needed to digest the next meal. Hope this helps. Let me know if im wrong.

answer: - b cells

explanation: -

so, the b cells mediate their action by identifying the antigens present on the surface of the pathogens and then producing antibodies in return to mediate its effect.