The correct answer is (c) discover antigens in body fluids.
B lymphocytes act as antigen presenting cells that recognizes and displays the antigen to the white blood cells. These cells process the antigens that are present in body fluids. Professional antigen presenting cells includes B-lymphocytes, macrophages, dendritic cells, etc.
Disease, competition, and predation.
Answer:
if im correct its a conductor
Explanation:
A material that allows an electric charge to pass through it easily is called a Metals such as iron, steel, copper, and aluminum are good conductors.
Two individual flatworms must transfer sperm to each other
