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.
Answer
6=C
7=All of the above
Explanation
OSHA should take steps to stop the imminent danger
Antibiotics stimulate the body's immune response to attack specific pathogen
Your answer is your third choice, critical injury
