It’s a or d hope this helps
Answer:The sliding filament model of muscle contraction, put forward by Hugh Huxley and Jean Hanson in 1954, is 60 years old in 2014. Formulation of the model and subsequent proof was driven by the pioneering work of Hugh Huxley (1924–2013).
Explanation:
Esophagus is the tube directly above the stomach below the mouth
C. On average they tend to die about 10 years earlier
