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4. Which system helps keep you healthy by carrying white blood cells throughout the body which trigger immune responses when needed? O A. Digestive system B. Endocrine system C. Respiratory system D. Lymphatic
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4. Which system helps keep you healthy by carrying white blood cells throughout

the body which trigger immune responses when needed?
O A. Digestive system
B. Endocrine system
C. Respiratory system
D. Lymphatic system
5. True or False: The excretory system is responsible for inhaling and exhaling,

User Neelsg
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Answer:

4. It is the lymphatic system

5. False, the excretory system is responsible for waste material.

Step-by-step explanation:

User Xhino
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