Why a mastectomy may be necessary. A mastectomy is mainly used as a treatment for breast cancer or to reduce the risk of breast cancer developing. Although breast cancer in men is much rarer than female breast cancer, it can also be treated with a mastectomy. Treating breast cancer.
Confidence votes 54. Protists are different from bacteria and archaea as protists, that have nuclei and can be multicellular, as from bacteria and archaea, that has no nuclei and is unicellular.acteria are pr â¦ okaryotic, and do not have nuclei. Also, protists are sort of like the miscellaneous category. There are plantlike cells (such as diatoms) and animal-like cells (such as ameoba). Bacteria and protists also have different shapes to their cells and different organelles.
Kingdom Archaea â¢âarchaeâ bacteria= âancientâ bacteria â¢Contains most of the âextremophilesâ â¢Prokaryotes-no membrane bound organelles â¢Encompasses 5 phyla, and includes the methanogens and extreme halophiles and thermophiles.â¢Until 1977 archaea were classified as bacteria. The majority of archaea are extremophiles. â¢ Acidophile An organism with optimal growth at pH levels of 3 or below â¢ Alkaliphile An organism with optimal growth pH levels of 9 or aboveâ¢ Anaerobe An organism that does not require oxygen for growth.