Which circulatory route takes blood from the intestines and stomach to the liver?

What classification of immunity are vaccines?

Epithelial tissue is used:

Which hormone type are the simplest and includes norepinephrine?

Which of these hormones pass in the blood and act on distant target cells?

Which blood type is known as the universal donor because it doesn’t contain either the A or B antigens?

Match the plasma component to its function:

Which type of lymphocytes produce antibodies?

How do T cells become activated? (read carefully)

Match the description to the hormone or gland that it is describing.