The Three Main Types of Muscle (Cardiac, Skeletal, Smooth) Function

Essay

The three main types of muscle (cardiac, skeletal, smooth) function in a coordinated way in humans and other vertebrates. Propose a hypothesis as to which type arose earliest over evolutionary time. In other words, do you think ancient organisms evolved something most similar to smooth, cardiac, or skeletal muscle first? Justify your proposal by stating the selective advantage that these early muscle cells would have conferred on an organism.