Question

I don't have true nucleus, cell organelles or plasma membrane.

Answer 1

Prokaryotic cell
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Answer 2

RBC has a nucleus in its initial stages when it is formed in bone marrow,it losses its nucleus when it gets mature,because it has to create more space for the transport of more oxygen.RBC’s become concave shaped when it losses its nucleus so that it can easily pass through narrow capillaries.

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