Why couldn't your heart only have one cardiac tissue?

The heart requires multiple types of cardiac tissues to function effectively. Each type plays a distinct role: cardiac muscle tissue enables contraction for pumping blood, while connective tissues provide structural support and electrical conduction pathways ensure coordinated heartbeats. This specialization allows the heart to maintain efficient circulation and respond dynamically to the body's varying needs. Without this diversity, the heart would struggle to operate effectively and maintain proper blood flow.