Seeing as how a dentist practices dentistry, I believe the answer would be a dentist. Hope this helps!
Firstly the wall of the capillery is very thin<span> as it is simiply made up of epithelial cells, reducing ... Secondly the lumen is very </span>narrow<span>, which encourage red blood cells to give up oxygen as ... </span>Capillary structure<span> is uniquely </span>adapted<span> for exchange processes </span>because<span>? ... How is the </span>structure<span> of </span>capillaries<span>related to </span>their function<span>?</span>
The resource for friends and family of alcoholics is to go to AA meetings and get help
