Which property of muscle tissue gives it the ability to contract and relax? A. presence of neurons B. presence of actin and myosin C. presence of the extracellular matrix D. presence of secretory structures
The correct answer in this case is B - the presence of actin and myosin. Actin and myosin are the most important players when it comes to muscle contraction and both play a incredibly important role. Withouth them, we wouldn't be able to contract our muscles at all!