A. Muscular
Hope this helps!! Good luck :)
C. chewing tobacco can cause cancer
hope this helps (:
First up defining stress. Stress is actually what we go through everyday, it's like the definition of challenge. For us people stress is what we don't want but is the essential thing of forming us. For plants experiencing stress just like malnutrition they are slow to bloom and make their fruits.
I would say life or health. Do you have any notes?
2. improves the health of your muscles and I would think 1. considered exercise but the part with some of the time throws me off