Cell diversity refers to the almost innumerable variation of different cell types and functions. In the unicellular world, cells use all sorts of adaptations and organelles to aid their survival in life. Multicellular organisms are even more complex in that cells work together and form groups of cells that all perform specific tasks. These specialized cells groups are called tissues. Collectively, these tissues join together ONCE AGAIN to form organs. Organs drive all the necessary functions needed to keep a multicellular organism alive.
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