In my opinion all of these but mostly water soooo oceans
The Integumentary system contains the largest organ in the body
Yes coz it has all compont of cell like nucleus and others
<span>Antibodies. A. k.a. immunoglobulins. They are produced by a group of white blood cells called B lymphocytes (or B cells). There are 5 classes of immunoglobulins; IgM,IgA,IgE,IgG and IgD.The classes of antibody diifferent both in their constant region and in their activity.IgG, the most common antibody, and is found mostly in the blood and tissue fluids, and IgA is localized in the mucous membranes which line the respiratory and gastrointestinal tracts.</span>
Carbohydrates, lipids, proteins, and nucleotides
yww lol