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Preparing the body for the "fight- or- flight" response is the role of the .
Nucleolus
A small dense region within the nucleus of a cell, involved in the production and assembly of ribosomes.
Nuclear Envelope
The double membrane structure that encloses the nucleus of a eukaryotic cell, separating its contents from the cytoplasm.
Prophase
The first stage of cell division in both mitosis and meiosis where chromosomes become visible and the nuclear envelope begins to break down.
Telophase
The final stage of cell division, where the chromatids or chromosomes move to opposite ends of the cell and two nuclei are formed.
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