The most common skin tumors in dogs over the age of five is merkel cell carcinoma. It is characterized by dermal nodules composed of epithelial cells surrounded by fine fibrous stroma. It can be treated by surgery, excision, chemotherapy. Tumors response to the treatment, but recurrence is common.
I am confident that the answer should be.....<span>A protein acts as a pump and moves calcium ions from an area of low concentration to an area of high concentration.
