<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>
Answer:
Proteins/fats
Explanation:
Which of the following classes of molecules produces the most energy per gram?
There are four classes of biological molecules: fats, carbohydrates, proteins, and nucleic acids. Of these, fats produce the most energy per gram at a whopping nine calories per gram.
Answer:
Because even if they are similar, they still have a difference between them, and that difference helps other plants.
Amino acids bond together to make long chains. Those long chains of amino acids are also called proteins.
Hope this helps!
They are made by the wind. ^-^
