The correct answer is: secretin
Secretin is a peptide hormone (produced in the S cells of the duodenum), that regulates secretions in the stomach, pancreas, and liver. Secretin is secreted in response to acid in the duodenum, so its role is to stimulate duct cells of the pancreas to secrete water and bicarbonate (regulating water homeostasis).
<span>organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere. These have been arranged from the smallest to the largest. The biosphere is the largest level of organization while the organelle is the smallest. However, the basic form of life begins with the cell. Many cells together form a tissue and several tissue form an organ.
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It is true that enzymes in the digestive tract catalyze hydrolysis reactions. The reaction happens when a molecule of water is added to the amino acids that are already in the digestive tract.
I think its because vaccines are just to help your body learn how to fight off the virus, it’s not to actually give you the virus. Hope this helped!
