Answer:
C) exchange of dissolved gases between the blood and the interstitial fluid.
Explanation:
It's not A because that's the definition of external respiration.
It's not B because that's the definition of homeostasis.
It's not D because that binding is all part of the homeostasis.
It's not E because that's part of the metabolism of each tissue.
The right answer is C because the definition of internal respiration is the exchange of oxygen and carbon dioxide between blood and tissue through the interstitial fluid.
Psoriasis is a skin disease that manifests itself in symptoms of varying severity. It is a chronic disease that can not be cured but can be alleviated by many treatments (like chemotherapy).
Photochemotherapy: also called P-UVA. It consists of the combination of UVA (a type of UV light) radiation after the local or oral administration of a psoralen that acts as a sensitizing photo. It is used alternately in patients for whom UVB (another type of UV) has no effect, as P-UVA is more effective and longer-lasting, but is associated with basiloma (basal cell carcinoma) and melanoma.