Emulsifiers<span> are substances that stabilise emulsions, stopping them separating out. First commonly found in egg yolk.</span>
During contraction, the filaments slide past he thick filaments, shortening the sarcomere. The thick and thin filaments do the actual work of a muscle, and the way they do this is pretty cool. Thick filaments are made of a protein called myosin. At the molecular level, a thick filament is a shaft of myosin molecules arranged in a cylinder. Thin filaments are made of another protein called actin. The thin filaments look like two strands of pearls twisted around each other.
D. Taper your training down during the last two weeks. rushing at the last minute like said in answer B can make you tired before an event.