CAT 1

Introduction The circulatory system, also known as the cardiovascular system, is a complex network that plays a vital role in maintaining life. It consists of the heart, blood vessels, and blood, working together to transport essential substances throughout the body. Understanding this system is crucial as it is fundamental to health, disease, and how our bodies function everyday. Key Con...

Quick Rules

  • Time limit: 5 minutes
  • Multiple attempts are not allowed
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