Answer:
Most systems depend on the chemicals produced by it to run smoothly
Explanation
Your endocrine system includes your thyroid, which helps produce certain aiding hormones
Answer:
The answer would be 4. just yourself
Explanation:
If you only have yourself for support then theres no system in place
True. (Sorry if this is incorrect.)
1. Lack of Physical Activity
2. Obesity
3. Tobacco
4. Abuse
5. HIV/AIDS
6.Mental Health
7.Violence
8. Environmental Destruction
9. Immunization
10. Cancer