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Some living organisms are only one cell, or unicellular. Things like bacteria and amoebas are single cell organisms. ... Because cells are able to differentiate and perform different tasks, multicellular organisms can become very complex. For example, red blood cells can carry oxygen throughout the body.
B. they represented powerful rulers
Sorry the answer took so long -laughs- but it only created a social hierarchy that stood for decades.
To understand how the present affects the future
