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.
Bacteria and archaea are classified as prokaryotes, a group of simple, single-cell organisms. Prokaryotes usually contain a single, circular deoxyribonucleic acid, DNA, molecule and lack a nucleus and intracellular organelles.itochondria and chloroplasts are similar to bacteria in size and divide independently of the eukaryote host cell by a process called binary fission. Bacteria also replicate by binary fission, while eukaryotes multiply by mitosis or meiosis.