nervous and respiratory systems digestive and endocrine systems muscular and immune systems skeletal and cardiac systems
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Which two body systems maintain the level of glucose in the blood?
Possibilities:
- nervous and respiratory systems
- digestive and endocrine systems
- muscular and immune systems
- skeletal and cardiac systems

digestive and endocrine systems