Deliver Oxygen and nutrients and to remove carbon dioxide and other waste products
Letter a is the correct answer
It is partly genetically determined but lifestyle choices such as diet, exercise, weight, and smoking play a role as well.
Answer:
Explanation:
1. Mixed messages from leadership can cause confusion
2. A lack of personal connection makes it feel unreal
3.Fear can cause people to experience denial
4. defying guidance makes people feel in control of their lives
