Answer:
1. Protection Against Pathogens and Diseases
Lymphatic and Immune System
2. Removal of Wastes
Digestive and Excretory Systems
3. Maintenance of Homeostasis
Nervous and Endocrine Systems
4. Transport of Oxygen and Carbon Dioxide
Respiratory and Circulatory Systems
5. Processing and Transport of Nutrients
Digestive and Circulatory Systems
6. Propagation of Organism
Reproductive and Endocrine Systems
Explanation:
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