Antigens are any molecules that elicit adaptive immune response. Antigens protrude from pathogens or other intruding substances. Antibodies are proteins found in blood plasma that attach to one particular kind of antigen and help to counter its effects.
<span>Hecht jump A jump executed from the highest of two asymmetrical bars in which the body is folded around the lower bar and continues to circle until the legs point down at a 45-degree angle. The body is then extended from the hips as the gymnast jumps to the floor with legs straightened and arms extended.</span>
