Instructions1. In your own words describe the role that acetylcholine plays in the contraction of a muscle fiber.2. In your own words describe the role that tropomyosin plays in contraction of a muscle fiber.3. If for any reason more calcium than usual is released from the SR, how would this affect the amount of force produced by the muscle fiber? Why?

For this milestone, you will identify a research gap in the articles you reviewed for your chosen track and develop a research question addressing the gap. Please note there may be more recent developments in the field related to your chosen track but for this assignment you will only focus on the articles provided.A. Identify a gap in the developmental psychology research presented in your chosen track. B. Develop a basic research question addressing the identified gap. C. Determine an appropriate research design that addresses your research question regarding developmental psychology, and explain why it was chosen. D. Explain how you will account for issues of ethics associated with your proposed research design. E. Explain how your approach to accounting for issues of ethics was informed by your review of the research presented in your chosen track.