The major function of this system is to ensure survival of the species by production of egg sperm cells and hormones A. Respiratory System B. Reproductive System C. Cardiovascular System D. Digestive System

The correct answer is **B. Reproductive System**.<br /><br />The reproductive system is specifically designed for the production of gametes (eggs and sperm) and sex hormones, which are essential for reproduction and thus the survival of the species. The other systems listed have different primary functions:<br /><br />* **Respiratory System:** Responsible for gas exchange (oxygen and carbon dioxide).<br />* **Cardiovascular System:** Circulates blood, carrying oxygen, nutrients, and other substances throughout the body.<br />* **Digestive System:** Breaks down food for absorption of nutrients.<br />