an organ system is a group of organs that work together for a common function. the order goes cells, tissues, organs, organ systems, organism.
That is something that cant be explained you will have to go to a doctor or a medical person or physician for that .
or try avoid using a cold shower take a hot shower
Take bath instead of showers hope I helped
The answer should be A) Limiting lean hamburger.
Smoking can constrict blood vessels which limits the amount of oxygenated blood causing a cold numb feeling. This happens especially to the limbs because they are farthest from the heart.
