Answer:
Oxygenated blood is pumped from the left ventricle into the aorta and supply cells of all organs with oxygen and nutrients.
Answer= B
Explanation:
Answer: Multiple socioeconomic factors contribute to health disparities, including income, education, residential segregation, stress, social and physical environment, employment, and many others. Disparities according to income and education have increased for smoking, with low-income persons smoking at higher rates.
Explanation:
:)
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.
