The answer is true.
<span>Antigens are molecules capable to induce an immune response, "targeted" by antibodies. Antigens are usually proteins, peptides, or polysaccharides but they can combine with lipids and nucleic acids and form more complex antigens (lipopolysaccharide). Usually, antigens are exogenous (foreign substances), but sometimes are part of the host itself (in an autoimmune disease). All of them contain an epitope which is a part of an antigen that can be recognized and bound by an antibody.</span>
consumers use producers as a source of energy
Explanation:
As the ocean water evaporates from the surface, the waters left behind become more concentrated with salts because salt content per volume increases as the water volume decreases from evaporation.
Therefore, more energy is required to evaporate more water because the salt concentration acts like impurities. Impurities increase the boiling point of water or other solutions by lowering the vapour pressure of water.
Learn More:
For more on how impurities affect boiling and melting points of solutions check out;
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