Final answer:
The correct answer is Brain. Alkaline phosphatase is present in liver tissue, but it is also found in other tissues such as bone and placental tissue. However, it is not present in the brain.
Step-by-step explanation:
The correct answer is Brain.
Alkaline phosphatase (ALP) is an enzyme that is present in the cells lining the biliary ducts of the liver, but it is also present in other tissues such as bone and placental tissue.
While ALP can be found in tissues other than the liver, it is not present in the brain.