The most common type of skin cancer, which produces an open ulcer that can easily be treated with radiation therapy or surgical removal, is malignant melanoma. true or false

Answer – False

The most common type of skin cancer is basal cell carcinoma. Basal cell carcinoma produces an open ulcer and can be easily treated with radiation therapy or surgical removal. Malignant melanoma on the other hand, is known to be the most aggressive and life-threatening of all types of skin cancer.

the nitrogen cycle provides nitrogen to the ecosystem from the atmosphere, ground and oceans. nitrogen is an important component of complex molecules such as amino acids and nucleotides, which lead to the creation of proteins and dna, the building blocks of all life. plants absorb nitrogen in the form of ammonium, nitrate ion and, on rare occasions, as amino acids. animals receive nitrogen necessary for biological processes from feeding on living or dead organic matter.